Create Free Account | Log In


A Duodecicentillion (1 Duodecicentillion) is 10 to the power of 339 (10^339). This is a stupendously astronomical number!

How many zeros in a Duodecicentillion?

There are 339 zeros in a Duodecicentillion.

What's before Duodecicentillion?

A Undecicentillion is smaller than a Duodecicentillion.

What's after Duodecicentillion?

A Tredecicentillion is larger than a Duodecicentillion.


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

Is Duodecicentillion the largest number?

Duodecicentillion 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.

Duodecicentillion written out

Duodecicentillion is written out as:


Big Numbers

This is just one of many really big numbers!

Play Now

Choose your device:

FREE to download and play!