311320294920 has 96 divisors (see below), whose sum is σ = 1065043137600. Its totient is φ = 78649335936.

The previous prime is 311320294919. The next prime is 311320294949. The reversal of 311320294920 is 29492023113.

311320294920 is a `hidden beast` number, since 31 + 132 + 0 + 2 + 9 + 492 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22750492 + ... + 22764171.

It is an arithmetic number, because the mean of its divisors is an integer number (11094199350).

Almost surely, 2^311320294920 is an apocalyptic number.

311320294920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

311320294920 is an abundant number, since it is smaller than the sum of its proper divisors (753722842680).

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

311320294920 is a wasteful number, since it uses less digits than its factorization.

311320294920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45514699 (or 45514692 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 311320294920 in words is "three hundred eleven billion, three hundred twenty million, two hundred ninety-four thousand, nine hundred twenty".