231403431304 has 32 divisors (see below), whose sum is σ = 453160670400. Its totient is φ = 110666589120.

The previous prime is 231403431251. The next prime is 231403431307. The reversal of 231403431304 is 403134304132.

It is not an unprimeable number, because it can be changed into a prime (231403431307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6607692 + ... + 6642619.

It is an arithmetic number, because the mean of its divisors is an integer number (14161270950).

Almost surely, 2^231403431304 is an apocalyptic number.

It is an amenable number.

231403431304 is a deficient number, since it is larger than the sum of its proper divisors (221757239096).

231403431304 is a wasteful number, since it uses less digits than its factorization.

231403431304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13250413 (or 13250409 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 231403431304 its reverse (403134304132), we get a palindrome (634537735436).

The spelling of 231403431304 in words is "two hundred thirty-one billion, four hundred three million, four hundred thirty-one thousand, three hundred four".