23004131 has 4 divisors (see below), whose sum is σ = 23019672. Its totient is φ = 22988592.

The previous prime is 23004127. The next prime is 23004143. The reversal of 23004131 is 13140032.

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

It is a cyclic number.

It is not a de Polignac number, because 23004131 - 2² = 23004127 is a prime.

It is a super-2 number, since 2×23004131² = 1058380086130322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23004161) 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, 5285 + ... + 8598.

It is an arithmetic number, because the mean of its divisors is an integer number (5754918).

Almost surely, 2^23004131 is an apocalyptic number.

23004131 is a deficient number, since it is larger than the sum of its proper divisors (15541).

23004131 is a wasteful number, since it uses less digits than its factorization.

23004131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15540.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 23004131 is about 4796.2621904979. The cubic root of 23004131 is about 284.4037230739.

Adding to 23004131 its reverse (13140032), we get a palindrome (36144163).

The spelling of 23004131 in words is "twenty-three million, four thousand, one hundred thirty-one".