23612131 has 2 divisors, whose sum is σ = 23612132. Its totient is φ = 23612130.

The previous prime is 23612107. The next prime is 23612137. The reversal of 23612131 is 13121632.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23612131 is a prime.

It is a super-2 number, since 2×23612131² = 1115065460722322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23612099 and 23612108.

It is not a weakly prime, because it can be changed into another prime (23612137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11806065 + 11806066.

It is an arithmetic number, because the mean of its divisors is an integer number (11806066).

Almost surely, 2^23612131 is an apocalyptic number.

23612131 is a deficient number, since it is larger than the sum of its proper divisors (1).

23612131 is an equidigital number, since it uses as much as digits as its factorization.

23612131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 19.

The square root of 23612131 is about 4859.2315236054. The cubic root of 23612131 is about 286.8875673997.

Adding to 23612131 its reverse (13121632), we get a palindrome (36733763).

The spelling of 23612131 in words is "twenty-three million, six hundred twelve thousand, one hundred thirty-one".