23040931 has 2 divisors, whose sum is σ = 23040932. Its totient is φ = 23040930.

The previous prime is 23040929. The next prime is 23040971. The reversal of 23040931 is 13904032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23040931 - 2¹ = 23040929 is a prime.

It is a super-2 number, since 2×23040931² = 1061769002693522, which contains 22 as substring.

Together with 23040929, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23040971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11520465 + 11520466.

It is an arithmetic number, because the mean of its divisors is an integer number (11520466).

Almost surely, 2^23040931 is an apocalyptic number.

23040931 is a deficient number, since it is larger than the sum of its proper divisors (1).

23040931 is an equidigital number, since it uses as much as digits as its factorization.

23040931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 23040931 is about 4800.0969781870. The cubic root of 23040931 is about 284.5552970248. Note that the first 3 decimals are identical.

Adding to 23040931 its reverse (13904032), we get a palindrome (36944963).

The spelling of 23040931 in words is "twenty-three million, forty thousand, nine hundred thirty-one".