23338531 has 2 divisors, whose sum is σ = 23338532. Its totient is φ = 23338530.

The previous prime is 23338493. The next prime is 23338541. The reversal of 23338531 is 13583332.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23338531 - 2²¹ = 21241379 is a prime.

It is a super-2 number, since 2×23338531² = 1089374058475922, 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 23338531.

It is not a weakly prime, because it can be changed into another prime (23338541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11669265 + 11669266.

It is an arithmetic number, because the mean of its divisors is an integer number (11669266).

Almost surely, 2^23338531 is an apocalyptic number.

23338531 is a deficient number, since it is larger than the sum of its proper divisors (1).

23338531 is an equidigital number, since it uses as much as digits as its factorization.

23338531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 28.

The square root of 23338531 is about 4830.9968950518. The cubic root of 23338531 is about 285.7751790806.

The spelling of 23338531 in words is "twenty-three million, three hundred thirty-eight thousand, five hundred thirty-one".