23120039 has 2 divisors, whose sum is σ = 23120040. Its totient is φ = 23120038.

The previous prime is 23120033. The next prime is 23120171. The reversal of 23120039 is 93002132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23120039 - 2¹⁶ = 23054503 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23120039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23120033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11560019 + 11560020.

It is an arithmetic number, because the mean of its divisors is an integer number (11560020).

Almost surely, 2^23120039 is an apocalyptic number.

23120039 is a deficient number, since it is larger than the sum of its proper divisors (1).

23120039 is an equidigital number, since it uses as much as digits as its factorization.

23120039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 23120039 is about 4808.3301675322. The cubic root of 23120039 is about 284.8805860662.

The spelling of 23120039 in words is "twenty-three million, one hundred twenty thousand, thirty-nine".