313031811912 has 16 divisors (see below), whose sum is σ = 782579529840. Its totient is φ = 104343937296.

The previous prime is 313031811839. The next prime is 313031811931. The reversal of 313031811912 is 219118130313.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6521496058 + ... + 6521496105.

It is an arithmetic number, because the mean of its divisors is an integer number (48911220615).

Almost surely, 2^313031811912 is an apocalyptic number.

It is an amenable number.

313031811912 is an abundant number, since it is smaller than the sum of its proper divisors (469547717928).

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

313031811912 is a wasteful number, since it uses less digits than its factorization.

313031811912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13042992172 (or 13042992168 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The spelling of 313031811912 in words is "three hundred thirteen billion, thirty-one million, eight hundred eleven thousand, nine hundred twelve".