312031113102 has 24 divisors (see below), whose sum is σ = 691789911384. Its totient is φ = 101591524944.

The previous prime is 312031113071. The next prime is 312031113127. The reversal of 312031113102 is 201311130213.

312031113102 is a `hidden beast` number, since 312 + 0 + 31 + 11 + 310 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201569713 + ... + 201571260.

It is an arithmetic number, because the mean of its divisors is an integer number (28824579641).

Almost surely, 2^312031113102 is an apocalyptic number.

312031113102 is an abundant number, since it is smaller than the sum of its proper divisors (379758798282).

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

312031113102 is a wasteful number, since it uses less digits than its factorization.

312031113102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403141024 (or 403141021 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 312031113102 its reverse (201311130213), we get a palindrome (513342243315).

The spelling of 312031113102 in words is "three hundred twelve billion, thirty-one million, one hundred thirteen thousand, one hundred two".