231431104 has 14 divisors (see below), whose sum is σ = 459246224. Its totient is φ = 115715520.

The previous prime is 231431087. The next prime is 231431111. The reversal of 231431104 is 401134132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1807992 + ... + 1808119.

Almost surely, 2^231431104 is an apocalyptic number.

It is an amenable number.

231431104 is a deficient number, since it is larger than the sum of its proper divisors (227815120).

231431104 is an equidigital number, since it uses as much as digits as its factorization.

231431104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3616123 (or 3616113 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 231431104 is about 15212.8598231891. The cubic root of 231431104 is about 613.9607044069.

Adding to 231431104 its reverse (401134132), we get a palindrome (632565236).

The spelling of 231431104 in words is "two hundred thirty-one million, four hundred thirty-one thousand, one hundred four".