231624023 has 4 divisors (see below), whose sum is σ = 231688080. Its totient is φ = 231559968.

The previous prime is 231624017. The next prime is 231624067. The reversal of 231624023 is 320426132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231624023 - 2⁸ = 231623767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231624023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231624083) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 26258 + ... + 33951.

It is an arithmetic number, because the mean of its divisors is an integer number (57922020).

Almost surely, 2^231624023 is an apocalyptic number.

231624023 is a deficient number, since it is larger than the sum of its proper divisors (64057).

231624023 is an equidigital number, since it uses as much as digits as its factorization.

231624023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64056.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 231624023 is about 15219.1991576430. The cubic root of 231624023 is about 614.1312544998.

The spelling of 231624023 in words is "two hundred thirty-one million, six hundred twenty-four thousand, twenty-three".