231231023 has 8 divisors (see below), whose sum is σ = 236666880. Its totient is φ = 225816760.

The previous prime is 231231017. The next prime is 231231031. The reversal of 231231023 is 320132132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231231023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231230992 and 231231010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231231043) 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, 17378 + ... + 27648.

It is an arithmetic number, because the mean of its divisors is an integer number (29583360).

Almost surely, 2^231231023 is an apocalyptic number.

231231023 is a deficient number, since it is larger than the sum of its proper divisors (5435857).

231231023 is a wasteful number, since it uses less digits than its factorization.

231231023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10797.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 231231023 is about 15206.2823530276. The cubic root of 231231023 is about 613.7837225938.

Adding to 231231023 its reverse (320132132), we get a palindrome (551363155).

The spelling of 231231023 in words is "two hundred thirty-one million, two hundred thirty-one thousand, twenty-three".