23002131 has 4 divisors (see below), whose sum is σ = 30669512. Its totient is φ = 15334752.

The previous prime is 23002127. The next prime is 23002151. The reversal of 23002131 is 13120032.

It is a happy number.

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

It is not a de Polignac number, because 23002131 - 2² = 23002127 is a prime.

It is a super-2 number, since 2×23002131² = 1058196061082322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23002121) 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, 3833686 + ... + 3833691.

It is an arithmetic number, because the mean of its divisors is an integer number (7667378).

Almost surely, 2^23002131 is an apocalyptic number.

23002131 is a deficient number, since it is larger than the sum of its proper divisors (7667381).

23002131 is an equidigital number, since it uses as much as digits as its factorization.

23002131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7667380.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 23002131 is about 4796.0536902750. The cubic root of 23002131 is about 284.3954807292.

Adding to 23002131 its reverse (13120032), we get a palindrome (36122163).

The spelling of 23002131 in words is "twenty-three million, two thousand, one hundred thirty-one".