311140431032 has 96 divisors (see below), whose sum is σ = 630929502720. Its totient is φ = 143787947520.

The previous prime is 311140431029. The next prime is 311140431073. The reversal of 311140431032 is 230134041113.

It is a junction number, because it is equal to n+sod(n) for n = 311140430989 and 311140431007.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 43168373 + ... + 43175579.

It is an arithmetic number, because the mean of its divisors is an integer number (6572182320).

Almost surely, 2^311140431032 is an apocalyptic number.

It is an amenable number.

311140431032 is an abundant number, since it is smaller than the sum of its proper divisors (319789071688).

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

311140431032 is a wasteful number, since it uses less digits than its factorization.

311140431032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7581 (or 7560 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 311140431032 its reverse (230134041113), we get a palindrome (541274472145).

The spelling of 311140431032 in words is "three hundred eleven billion, one hundred forty million, four hundred thirty-one thousand, thirty-two".