31357318116 has 48 divisors (see below), whose sum is σ = 77040877760. Its totient is φ = 9899366400.

The previous prime is 31357318103. The next prime is 31357318133. The reversal of 31357318116 is 61181375313.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 824316 + ... + 861516.

Almost surely, 2^31357318116 is an apocalyptic number.

It is an amenable number.

31357318116 is an abundant number, since it is smaller than the sum of its proper divisors (45683559644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31357318116 is a wasteful number, since it uses less digits than its factorization.

31357318116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40924 (or 40922 counting only the distinct ones).

The product of its digits is 45360, while the sum is 39.

The spelling of 31357318116 in words is "thirty-one billion, three hundred fifty-seven million, three hundred eighteen thousand, one hundred sixteen".