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A Duodecillion (1 Duodecillion) is 10 to the power of 39 (10^39). This is an extremely large number!

How many zeros in a Duodecillion?

There are 39 zeros in a Duodecillion.

What's before Duodecillion?

A Undecillion is smaller than a Duodecillion.

What's after Duodecillion?

A Tredecillion is larger than a Duodecillion.


A Duodecillionaire is someone whos assets, net worth or wealth is 1 or more Duodecillion. It is unlikely anyone will ever be a true Duodecillionaire. If you want to be a Duodecillionaire, play Tap Tales!

Is Duodecillion the largest number?

Duodecillion is not the largest number. Infinity best describes the largest possible number - if there even is one! We cannot comprehend what the largest number actually is.

Duodecillion written out

Duodecillion is written out as:


Big Numbers

This is just one of many really big numbers!

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