23137031 has 2 divisors, whose sum is σ = 23137032. Its totient is φ = 23137030.

The previous prime is 23137001. The next prime is 23137039. The reversal of 23137031 is 13073132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23137031 is a prime.

It is a super-2 number, since 2×23137031² = 1070644406989922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 23136994 and 23137012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23137039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11568515 + 11568516.

It is an arithmetic number, because the mean of its divisors is an integer number (11568516).

Almost surely, 2^23137031 is an apocalyptic number.

23137031 is a deficient number, since it is larger than the sum of its proper divisors (1).

23137031 is an equidigital number, since it uses as much as digits as its factorization.

23137031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 23137031 is about 4810.0967765732. The cubic root of 23137031 is about 284.9503596728.

The spelling of 23137031 in words is "twenty-three million, one hundred thirty-seven thousand, thirty-one".