31311122013324 has 72 divisors (see below), whose sum is σ = 81114206933760. Its totient is φ = 10177929849600.

The previous prime is 31311122013277. The next prime is 31311122013329. The reversal of 31311122013324 is 42331022111313.

31311122013324 is a `hidden beast` number, since 3 + 1 + 3 + 111 + 220 + 1 + 3 + 324 = 666.

It is not an unprimeable number, because it can be changed into a prime (31311122013329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1432507 + ... + 8042034.

Almost surely, 2^{31311122013324} is an apocalyptic number.

It is an amenable number.

31311122013324 is an abundant number, since it is smaller than the sum of its proper divisors (49803084920436).

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

31311122013324 is a wasteful number, since it uses less digits than its factorization.

31311122013324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9476831 (or 9476826 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 31311122013324 its reverse (42331022111313), we get a palindrome (73642144124637).

The spelling of 31311122013324 in words is "thirty-one trillion, three hundred eleven billion, one hundred twenty-two million, thirteen thousand, three hundred twenty-four".