23072134439 has 2 divisors, whose sum is σ = 23072134440. Its totient is φ = 23072134438.

The previous prime is 23072134433. The next prime is 23072134441. The reversal of 23072134439 is 93443127032.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23072134439 is a prime.

It is a Sophie Germain prime.

Together with 23072134441, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23072134433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11536067219 + 11536067220.

It is an arithmetic number, because the mean of its divisors is an integer number (11536067220).

Almost surely, 2^23072134439 is an apocalyptic number.

23072134439 is a deficient number, since it is larger than the sum of its proper divisors (1).

23072134439 is an equidigital number, since it uses as much as digits as its factorization.

23072134439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 38.

The spelling of 23072134439 in words is "twenty-three billion, seventy-two million, one hundred thirty-four thousand, four hundred thirty-nine".