23120331 has 16 divisors (see below), whose sum is σ = 33576480. Its totient is φ = 14065920.

The previous prime is 23120329. The next prime is 23120333. The reversal of 23120331 is 13302132.

It is an interprime number because it is at equal distance from previous prime (23120329) and next prime (23120333).

It is not a de Polignac number, because 23120331 - 2¹ = 23120329 is a prime.

It is a super-2 number, since 2×23120331² = 1069099411099122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23120331.

It is not an unprimeable number, because it can be changed into a prime (23120333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141 + ... + 6801.

It is an arithmetic number, because the mean of its divisors is an integer number (2098530).

Almost surely, 2^23120331 is an apocalyptic number.

23120331 is a deficient number, since it is larger than the sum of its proper divisors (10456149).

23120331 is a wasteful number, since it uses less digits than its factorization.

23120331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6766.

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

The square root of 23120331 is about 4808.3605314078. The cubic root of 23120331 is about 284.8817853833.

Adding to 23120331 its reverse (13302132), we get a palindrome (36422463).

The spelling of 23120331 in words is "twenty-three million, one hundred twenty thousand, three hundred thirty-one".