23039911 has 2 divisors, whose sum is σ = 23039912. Its totient is φ = 23039910.

The previous prime is 23039903. The next prime is 23039921. The reversal of 23039911 is 11993032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23039911 - 2³ = 23039903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23039911.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23039921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11519955 + 11519956.

It is an arithmetic number, because the mean of its divisors is an integer number (11519956).

Almost surely, 2^23039911 is an apocalyptic number.

23039911 is a deficient number, since it is larger than the sum of its proper divisors (1).

23039911 is an equidigital number, since it uses as much as digits as its factorization.

23039911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 23039911 is about 4799.9907291577. The cubic root of 23039911 is about 284.5510979658.

The spelling of 23039911 in words is "twenty-three million, thirty-nine thousand, nine hundred eleven".