231431001304 has 64 divisors (see below), whose sum is σ = 504668620800. Its totient is φ = 98690701824.

The previous prime is 231431001271. The next prime is 231431001359. The reversal of 231431001304 is 403100134132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1887592 + ... + 2006455.

It is an arithmetic number, because the mean of its divisors is an integer number (7885447200).

Almost surely, 2^231431001304 is an apocalyptic number.

It is an amenable number.

231431001304 is an abundant number, since it is smaller than the sum of its proper divisors (273237619496).

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

231431001304 is a wasteful number, since it uses less digits than its factorization.

231431001304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3894112 (or 3894108 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 231431001304 its reverse (403100134132), we get a palindrome (634531135436).

The spelling of 231431001304 in words is "two hundred thirty-one billion, four hundred thirty-one million, one thousand, three hundred four".