12311100331 has 6 divisors (see below), whose sum is σ = 12993156132. Its totient is φ = 11663147340.

The previous prime is 12311100323. The next prime is 12311100353. The reversal of 12311100331 is 13300111321.

It is not a de Polignac number, because 12311100331 - 2³ = 12311100323 is a prime.

It is a super-2 number, since 2×12311100331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12311100311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17051025 + ... + 17051746.

It is an arithmetic number, because the mean of its divisors is an integer number (2165526022).

Almost surely, 2^12311100331 is an apocalyptic number.

12311100331 is a deficient number, since it is larger than the sum of its proper divisors (682055801).

12311100331 is an equidigital number, since it uses as much as digits as its factorization.

12311100331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34102809 (or 34102790 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 12311100331 its reverse (13300111321), we get a palindrome (25611211652).

The spelling of 12311100331 in words is "twelve billion, three hundred eleven million, one hundred thousand, three hundred thirty-one".