23204131 has 2 divisors, whose sum is σ = 23204132. Its totient is φ = 23204130.

The previous prime is 23204123. The next prime is 23204179. The reversal of 23204131 is 13140232.

It is a happy number.

23204131 is nontrivially palindromic in base 12.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23204131 - 2³ = 23204123 is a prime.

It is a super-2 number, since 2×23204131² = 1076863390930322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23204231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11602065 + 11602066.

It is an arithmetic number, because the mean of its divisors is an integer number (11602066).

Almost surely, 2^23204131 is an apocalyptic number.

23204131 is a deficient number, since it is larger than the sum of its proper divisors (1).

23204131 is an equidigital number, since it uses as much as digits as its factorization.

23204131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 23204131 is about 4817.0666385260. The cubic root of 23204131 is about 285.2255565395.

Adding to 23204131 its reverse (13140232), we get a palindrome (36344363).

The spelling of 23204131 in words is "twenty-three million, two hundred four thousand, one hundred thirty-one".