23120021039 has 2 divisors, whose sum is σ = 23120021040. Its totient is φ = 23120021038.

The previous prime is 23120021033. The next prime is 23120021059. The reversal of 23120021039 is 93012002132.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23120021039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23120021033) 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, 11560010519 + 11560010520.

It is an arithmetic number, because the mean of its divisors is an integer number (11560010520).

Almost surely, 2^23120021039 is an apocalyptic number.

23120021039 is a deficient number, since it is larger than the sum of its proper divisors (1).

23120021039 is an equidigital number, since it uses as much as digits as its factorization.

23120021039 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 23.

The spelling of 23120021039 in words is "twenty-three billion, one hundred twenty million, twenty-one thousand, thirty-nine".