230331021 has 32 divisors (see below), whose sum is σ = 325036800. Its totient is φ = 144883200.

The previous prime is 230331019. The next prime is 230331037. The reversal of 230331021 is 120133032.

It is not a de Polignac number, because 230331021 - 2¹ = 230331019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230331041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1169095 + ... + 1169291.

It is an arithmetic number, because the mean of its divisors is an integer number (10157400).

Almost surely, 2^230331021 is an apocalyptic number.

It is an amenable number.

230331021 is a deficient number, since it is larger than the sum of its proper divisors (94705779).

230331021 is a wasteful number, since it uses less digits than its factorization.

230331021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 230331021 is about 15176.6604033957. The cubic root of 230331021 is about 612.9863601112.

Adding to 230331021 its reverse (120133032), we get a palindrome (350464053).

The spelling of 230331021 in words is "two hundred thirty million, three hundred thirty-one thousand, twenty-one".