What Number Comes After Trillion?

Are you unsure about what number comes after a trillion?

What precisely is a Googol?

Continue reading to discover what follows after a trillion, the names of all significant numbers greater than trillion, and some techniques for conceptualizing very high values.

Quick Answer to What Comes After Trillion:

It is called Quadrillion.


Quadrillion comes after trillion. A quadrillion is a 1 followed by 15 zeros. While a Trillion is followed by 12 zeros.


I hope this helps.

But please don’t stop here. Continue reading. There’s so much more you could learn about the names of large numbers.

after a trillion

It is a known fact that the progression starts from Unit_Tens_Hundreds_Thousand_Ten thouand_Hundred thousand_Million_Billion_Trillion. and this is where most people get choked.

How many zeros are in a:

Million – 6 zeros

Billion – 9 zeros

Trillion – 12 zeros

Quadrillion – 15 zeros

Quintillion – 18 zeros


American & British Names for Large Numbers

Large numbers
value in powers of ten number of zeros American name British name
109 9 billion thousand million or milliard
1012 12 trillion billion
1015 15 quadrillion thousand billion
1018 18 quintillion trillion
1021 21 sextillion thousand trillion
1024 24 septillion quadrillion
1027 27 octillion thousand quadrillion
1030 30 nonillion quintillion
1033 33 decillion thousand quintillion
1036 36 undecillion sextillion
1039 39 duodecillion thousand sextillion
1042 42 tredecillion septillion
1045 45 quattuordecillion thousand septillion
1084 84 quattuordecillion
10100 100 googol googol
10303 303 centillion
10600 600 centillion
10googol googol googolplex googolplex

table of large numbers

What Number Comes After Trillion?

I remember when as a  child, I was arguing with my friends who would be the richest when we grow up, the argument ended when we got to Trillion and the first person who mentioned Trillion was going to be the richest cos we so believed that was the highest number that existed. I hope you are also not at this table.

What number is after Trillion? Trillion is a “1 with 12 zeros after it”, it looks like this: 1,000,000,000,000. The next named number after trillion is quadrillion, which is a 1 with 15 zeros after it: 1,000,000,000,000,000.

Below is a table of numbers beneath Trillion:

For a better understanding and easier reading, the numbers are written with Scientific notations.

Name Number
Million 1 x 106
Billion 1 x 109
Trillion 1 x 1012
Quadrillion 1 x 1015
Quintillion 1 x 1018
Sextillion 1 x 1021
Septillion 1 x 1024
Octillion 1 x 1027
Nonillion 1 x 1030
Decillion 1 x 1033
Undecillion 1 x 1036
Duodecillion 1 x 1039
Tredecillion 1 x 1042
Quattuordecillion 1 x 1045
Quindecillion 1 x 1048
Sexdecillion 1 x 1051
Septendecillion 1 x 1054
Octodecillion 1 x 1057
Novemdecillion 1 x 1060
Vigintillion 1 x 1063
Unvigintillion 1 x 1066
Duovigintillion 1 x 1069
Trevigintillion 1 x 1072
Quattuorvigintillion 1 x 1075
Quinvigintillion 1 x 1078
Sexvigintillion 1 x 1081
Septenvigintillion 1 x 1084
Octovigintillion 1 x 1087
Nonvigintillion 1 x 1090
Trigintillion 1 x 1093
Untrigintillion 1 x 1096
Duotrigintillion 1 x 1099
Ten-duotrigintillion (or Googol) 1 x 10100
Skewer’s Number 1 x 10130
Centillion 1 x 10303
Googolplex 1 x 1010100
Skewes’ Number skewes number

As you can see, throughout the majority of the chart, the power of ten rises by three with each new number, which implies that you must add three more zeros to the end of the previous number to get the next. For instance, a billion is a one followed by nine zeros, or 1,000,000,000. Trillion is a 1 followed by twelve zeros, or 1,000,000,000,000.

This pattern continues until you reach Ten-duotrigintillion, or Googol (yes, this is where search engine Google got their name from). The numbers between Googol, Skewer’s Number, Centillion, and Googolplex have no names.

You may have noticed that the word “zillion” is missing from this list. Zillion is not a real number; it is a colloquial word for an undefined but very big amount.

Understanding Large Numbers

While the graphic above illustrates all of the significant enormous numbers, what do those numbers really represent and how can they be understood? Although it may be difficult, if not impossible, to comprehend very big numbers, there are a few methods for obtaining a sense of their magnitude. Although trillion is one of the lowest figures on the list, it is still an enormous amount. To count to a trillion would take about 31,709 years!

When written out, a googol, or a one followed by a hundred zeros, appears as follows: 10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000. When compared to scientific notation, writing a huge number out this way may sometimes convey a more accurate impression of its magnitude.

And how about a googolplex, another of the chart’s gigantic numbers? A googolplex is composed of a single digit followed by a googol zero. A googolplex is such a huge number that it has no known use in mathematics, and some mathematicians and astronomers speculate that it is even larger than the number of atoms in the universe.

However, there are bigger numbers than a googolplex. Skewes’ number was created by mathematician Stanley Skewes and is ten to the tenth to the tenth to the thirty-fourth. Skewes was especially interested in prime numbers, and when his number was presented in 1933, it was dubbed the “biggest number that has ever served any clear function in mathematics” by a colleague.

Skewes’ number, however, has subsequently been surpassed by Graham’s, which is now recognized as the world’s biggest number. R.L. Graham invented Graham’s number, which cannot be expressed in standard notation. It is so vast that even if all everything in the universe were turned to pens and ink, it would still be insufficient to write it out completely.

Summary: What Comes After Trillion?

What comes next after trillion? Following trillion is quadrillion, or a 1 followed by 15 zeros: 1,000,000,000,000,000. Knowing the names of large numbers is advantageous when dealing with extremely large values or performing higher-level mathematics.

The biggest number known at the moment is Graham’s number, which is much too huge and complex to be written down or imagined.

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