23400023 has 2 divisors, whose sum is σ = 23400024. Its totient is φ = 23400022.

The previous prime is 23399953. The next prime is 23400029. The reversal of 23400023 is 32000432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23400023 - 2⁸ = 23399767 is a prime.

It is a super-2 number, since 2×23400023² = 1095122152801058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23399980 and 23400007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23400029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11700011 + 11700012.

It is an arithmetic number, because the mean of its divisors is an integer number (11700012).

Almost surely, 2^23400023 is an apocalyptic number.

23400023 is a deficient number, since it is larger than the sum of its proper divisors (1).

23400023 is an equidigital number, since it uses as much as digits as its factorization.

23400023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 23400023 is about 4837.3570263110. The cubic root of 23400023 is about 286.0259443105.

Adding to 23400023 its reverse (32000432), we get a palindrome (55400455).

The spelling of 23400023 in words is "twenty-three million, four hundred thousand, twenty-three".