23239338389 has 2 divisors, whose sum is σ = 23239338390. Its totient is φ = 23239338388.

The previous prime is 23239338361. The next prime is 23239338401. The reversal of 23239338389 is 98383393232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15861387364 + 7377951025 = 125942^2 + 85895^2 .

It is a cyclic number.

It is not a de Polignac number, because 23239338389 - 2²⁰ = 23238289813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23239338389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23239331389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11619669194 + 11619669195.

It is an arithmetic number, because the mean of its divisors is an integer number (11619669195).

Almost surely, 2^23239338389 is an apocalyptic number.

It is an amenable number.

23239338389 is a deficient number, since it is larger than the sum of its proper divisors (1).

23239338389 is an equidigital number, since it uses as much as digits as its factorization.

23239338389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5038848, while the sum is 53.

The spelling of 23239338389 in words is "twenty-three billion, two hundred thirty-nine million, three hundred thirty-eight thousand, three hundred eighty-nine".