23423213239 has 2 divisors, whose sum is σ = 23423213240. Its totient is φ = 23423213238.

The previous prime is 23423213201. The next prime is 23423213273. The reversal of 23423213239 is 93231232432.

It is an a-pointer prime, because the next prime (23423213273) can be obtained adding 23423213239 to its sum of digits (34).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23423213239 - 2²⁷ = 23288995511 is a prime.

It is a super-2 number, since 2×23423213239² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23423213279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11711606619 + 11711606620.

It is an arithmetic number, because the mean of its divisors is an integer number (11711606620).

Almost surely, 2^23423213239 is an apocalyptic number.

23423213239 is a deficient number, since it is larger than the sum of its proper divisors (1).

23423213239 is an equidigital number, since it uses as much as digits as its factorization.

23423213239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 34.

The spelling of 23423213239 in words is "twenty-three billion, four hundred twenty-three million, two hundred thirteen thousand, two hundred thirty-nine".