23400331 has 2 divisors, whose sum is σ = 23400332. Its totient is φ = 23400330.

The previous prime is 23400259. The next prime is 23400337. The reversal of 23400331 is 13300432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23400331 - 2⁷ = 23400203 is a prime.

It is a super-2 number, since 2×23400331² = 1095150981819122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23400337) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11700165 + 11700166.

It is an arithmetic number, because the mean of its divisors is an integer number (11700166).

Almost surely, 2^23400331 is an apocalyptic number.

23400331 is a deficient number, since it is larger than the sum of its proper divisors (1).

23400331 is an equidigital number, since it uses as much as digits as its factorization.

23400331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 23400331 is about 4837.3888617724. The cubic root of 23400331 is about 286.0271992324.

Adding to 23400331 its reverse (13300432), we get a palindrome (36700763).

The spelling of 23400331 in words is "twenty-three million, four hundred thousand, three hundred thirty-one".