31013231311200 has 72 divisors (see below), whose sum is σ = 100948067925768. Its totient is φ = 8270195015680.

The previous prime is 31013231311171. The next prime is 31013231311261. The reversal of 31013231311200 is 211313231013.

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, 6461087457 + ... + 6461092256.

It is an arithmetic number, because the mean of its divisors is an integer number (1402056498969).

Almost surely, 2^{31013231311200} is an apocalyptic number.

31013231311200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31013231311200 is an abundant number, since it is smaller than the sum of its proper divisors (69934836614568).

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

31013231311200 is a wasteful number, since it uses less digits than its factorization.

31013231311200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12922179736 (or 12922179723 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 31013231311200 its reverse (211313231013), we get a palindrome (31224544542213).

The spelling of 31013231311200 in words is "thirty-one trillion, thirteen billion, two hundred thirty-one million, three hundred eleven thousand, two hundred".