23239031 has 2 divisors, whose sum is σ = 23239032. Its totient is φ = 23239030.

The previous prime is 23239003. The next prime is 23239043. The reversal of 23239031 is 13093232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23239031 - 2⁶ = 23238967 is a prime.

It is a super-2 number, since 2×23239031² = 1080105123637922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23238988 and 23239006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23239001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11619515 + 11619516.

It is an arithmetic number, because the mean of its divisors is an integer number (11619516).

Almost surely, 2^23239031 is an apocalyptic number.

23239031 is a deficient number, since it is larger than the sum of its proper divisors (1).

23239031 is an equidigital number, since it uses as much as digits as its factorization.

23239031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 23239031 is about 4820.6878139950. The cubic root of 23239031 is about 285.3684820311.

The spelling of 23239031 in words is "twenty-three million, two hundred thirty-nine thousand, thirty-one".