231423560 has 16 divisors (see below), whose sum is σ = 520703100. Its totient is φ = 92569408.

The previous prime is 231423541. The next prime is 231423571. The reversal of 231423560 is 65324132.

It can be written as a sum of positive squares in 2 ways, for example, as 228553924 + 2869636 = 15118^2 + 1694^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2892755 + ... + 2892834.

Almost surely, 2^231423560 is an apocalyptic number.

231423560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231423560 is an abundant number, since it is smaller than the sum of its proper divisors (289279540).

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

231423560 is a wasteful number, since it uses less digits than its factorization.

231423560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5785600 (or 5785596 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 231423560 is about 15212.6118730480. The cubic root of 231423560 is about 613.9540332064.

Adding to 231423560 its reverse (65324132), we get a palindrome (296747692).

The spelling of 231423560 in words is "two hundred thirty-one million, four hundred twenty-three thousand, five hundred sixty".