311230302988 has 24 divisors (see below), whose sum is σ = 594277813584. Its totient is φ = 141441921600.

The previous prime is 311230302961. The next prime is 311230303051. The reversal of 311230302988 is 889203032113.

It is a self number, because there is not a number n which added to its sum of digits gives 311230302988.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420495 + ... + 894022.

It is an arithmetic number, because the mean of its divisors is an integer number (24761575566).

Almost surely, 2^311230302988 is an apocalyptic number.

It is an amenable number.

311230302988 is a deficient number, since it is larger than the sum of its proper divisors (283047510596).

311230302988 is a wasteful number, since it uses less digits than its factorization.

311230302988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319913 (or 1319911 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 311230302988 in words is "three hundred eleven billion, two hundred thirty million, three hundred two thousand, nine hundred eighty-eight".