230331031 has 8 divisors (see below), whose sum is σ = 270350240. Its totient is φ = 192090528.

The previous prime is 230331019. The next prime is 230331037. The reversal of 230331031 is 130133032.

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

It is not a de Polignac number, because 230331031 - 2⁵ = 230330999 is a prime.

It is a super-2 number, since 2×230331031² = 106104767683045922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230330996 and 230331014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230331037) 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, 444396 + ... + 444913.

It is an arithmetic number, because the mean of its divisors is an integer number (33793780).

Almost surely, 2^230331031 is an apocalyptic number.

230331031 is a deficient number, since it is larger than the sum of its proper divisors (40019209).

230331031 is an equidigital number, since it uses as much as digits as its factorization.

230331031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889353.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 230331031 is about 15176.6607328490. The cubic root of 230331031 is about 612.9863689823.

Adding to 230331031 its reverse (130133032), we get a palindrome (360464063).

The spelling of 230331031 in words is "two hundred thirty million, three hundred thirty-one thousand, thirty-one".