31118463314512 has 60 divisors (see below), whose sum is σ = 71182418602080. Its totient is φ = 13137432251328.

The previous prime is 31118463314503. The next prime is 31118463314531. The reversal of 31118463314512 is 21541336481113.

It is a happy number.

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, 296155812 + ... + 296260867.

It is an arithmetic number, because the mean of its divisors is an integer number (1186373643368).

Almost surely, 2^{31118463314512} is an apocalyptic number.

It is an amenable number.

31118463314512 is an abundant number, since it is smaller than the sum of its proper divisors (40063955287568).

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

31118463314512 is a wasteful number, since it uses less digits than its factorization.

31118463314512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592416768 (or 592416755 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

Adding to 31118463314512 its reverse (21541336481113), we get a palindrome (52659799795625).

The spelling of 31118463314512 in words is "thirty-one trillion, one hundred eighteen billion, four hundred sixty-three million, three hundred fourteen thousand, five hundred twelve".