12313310331 has 16 divisors (see below), whose sum is σ = 18852071168. Its totient is φ = 7002828000.

The previous prime is 12313310293. The next prime is 12313310333. The reversal of 12313310331 is 13301331321.

It is not a de Polignac number, because 12313310331 - 2⁹ = 12313309819 is a prime.

It is a super-2 number, since 2×12313310331² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 12313310298 and 12313310307.

It is not an unprimeable number, because it can be changed into a prime (12313310333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1385020 + ... + 1393881.

It is an arithmetic number, because the mean of its divisors is an integer number (1178254448).

Almost surely, 2^12313310331 is an apocalyptic number.

12313310331 is a deficient number, since it is larger than the sum of its proper divisors (6538760837).

12313310331 is a wasteful number, since it uses less digits than its factorization.

12313310331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2779122.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 12313310331 its reverse (13301331321), we get a palindrome (25614641652).

The spelling of 12313310331 in words is "twelve billion, three hundred thirteen million, three hundred ten thousand, three hundred thirty-one".