3131112333320 has 32 divisors (see below), whose sum is σ = 7351307219520. Its totient is φ = 1197990805440.

The previous prime is 3131112333319. The next prime is 3131112333347. The reversal of 3131112333320 is 233332111313.

It is a super-2 number, since 2×3131112333320² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3131112333320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1701690566 + ... + 1701692405.

It is an arithmetic number, because the mean of its divisors is an integer number (229728350610).

Almost surely, 2^{3131112333320} is an apocalyptic number.

It is an amenable number.

3131112333320 is an abundant number, since it is smaller than the sum of its proper divisors (4220194886200).

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

3131112333320 is a wasteful number, since it uses less digits than its factorization.

3131112333320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403383005 (or 3403383001 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 3131112333320 its reverse (233332111313), we get a palindrome (3364444444633).

The spelling of 3131112333320 in words is "three trillion, one hundred thirty-one billion, one hundred twelve million, three hundred thirty-three thousand, three hundred twenty".