311313112120 has 64 divisors (see below), whose sum is σ = 720922291200. Its totient is φ = 120938885760.

The previous prime is 311313112087. The next prime is 311313112147. The reversal of 311313112120 is 21211313113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 627760 + ... + 1008319.

It is an arithmetic number, because the mean of its divisors is an integer number (11264410800).

Almost surely, 2^311313112120 is an apocalyptic number.

It is an amenable number.

311313112120 is an abundant number, since it is smaller than the sum of its proper divisors (409609179080).

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

311313112120 is a wasteful number, since it uses less digits than its factorization.

311313112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636228 (or 1636224 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 311313112120 its reverse (21211313113), we get a palindrome (332524425233).

The spelling of 311313112120 in words is "three hundred eleven billion, three hundred thirteen million, one hundred twelve thousand, one hundred twenty".