311317286968 has 128 divisors (see below), whose sum is σ = 635830272000. Its totient is φ = 142473893760.

The previous prime is 311317286887. The next prime is 311317286983. The reversal of 311317286968 is 869682713113.

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 31 ways as a sum of consecutive naturals, for example, 243406153 + ... + 243407431.

It is an arithmetic number, because the mean of its divisors is an integer number (4967424000).

Almost surely, 2^311317286968 is an apocalyptic number.

It is an amenable number.

311317286968 is an abundant number, since it is smaller than the sum of its proper divisors (324512985032).

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

311317286968 is a wasteful number, since it uses less digits than its factorization.

311317286968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785 (or 1781 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 55.

The spelling of 311317286968 in words is "three hundred eleven billion, three hundred seventeen million, two hundred eighty-six thousand, nine hundred sixty-eight".