What is a 31-digit number?

A 31-digit number is a number that has 31 digits where the first digit must be 1 or greater. On this page, we will answer three questions for you: What is the smallest 31-digit number? What is the largest 31-digit number? How many 31-digit numbers are there?

Smallest 31-digit number
The smallest 31-digit number is 1 followed by 30 zeros. This number is called one nonillion.

Largest 31-digit number
The largest 31-digit number is 9 followed by another 30 nines. This number is called nine nonillion nine hundred ninety-nine octillion nine hundred ninety-nine septillion nine hundred ninety-nine sextillion nine hundred ninety-nine quintillion nine hundred ninety-nine quadrillion nine hundred ninety-nine trillion nine hundred ninety-nine billion nine hundred ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-nine.

Total number of 31-digit numbers
There are a total of nine nonillion different 31-digit numbers. nine nonillion is 9 followed by 30 zeros.

Digit Numbers
Here you can learn about another digit number.

What is a 32-digit number?
Go here for information about the next digit number on our list that we have information about.