23320231 has 4 divisors (see below), whose sum is σ = 25440264. Its totient is φ = 21200200.

The previous prime is 23320181. The next prime is 23320237. The reversal of 23320231 is 13202332.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23320231 is a prime.

It is a super-2 number, since 2×23320231² = 1087666347786722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23320237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1060000 + ... + 1060021.

It is an arithmetic number, because the mean of its divisors is an integer number (6360066).

Almost surely, 2^23320231 is an apocalyptic number.

23320231 is a deficient number, since it is larger than the sum of its proper divisors (2120033).

23320231 is a wasteful number, since it uses less digits than its factorization.

23320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120032.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 23320231 is about 4829.1025046068. The cubic root of 23320231 is about 285.7004663911.

Adding to 23320231 its reverse (13202332), we get a palindrome (36522563).

It can be divided in two parts, 2 and 3320231, that added together give a palindrome (3320233).

The spelling of 23320231 in words is "twenty-three million, three hundred twenty thousand, two hundred thirty-one".