231551023 has 8 divisors (see below), whose sum is σ = 252777600. Its totient is φ = 210353880.

The previous prime is 231551009. The next prime is 231551039. The reversal of 231551023 is 320155132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231551023 - 2²¹ = 229453871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231550985 and 231551003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231551063) 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, 11128 + ... + 24226.

It is an arithmetic number, because the mean of its divisors is an integer number (31597200).

Almost surely, 2^231551023 is an apocalyptic number.

231551023 is a deficient number, since it is larger than the sum of its proper divisors (21226577).

231551023 is a wasteful number, since it uses less digits than its factorization.

231551023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14717.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 231551023 is about 15216.8006821408. The cubic root of 231551023 is about 614.0667299719.

The spelling of 231551023 in words is "two hundred thirty-one million, five hundred fifty-one thousand, twenty-three".