23251342783391 has 2 divisors, whose sum is σ = 23251342783392. Its totient is φ = 23251342783390.

The previous prime is 23251342783367. The next prime is 23251342783393. The reversal of 23251342783391 is 19338724315232.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23251342783391 is a prime.

It is a Sophie Germain prime.

Together with 23251342783393, 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 (23251342783393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11625671391695 + 11625671391696.

It is an arithmetic number, because the mean of its divisors is an integer number (11625671391696).

Almost surely, 2^{23251342783391} is an apocalyptic number.

23251342783391 is a deficient number, since it is larger than the sum of its proper divisors (1).

23251342783391 is an equidigital number, since it uses as much as digits as its factorization.

23251342783391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 53.

The spelling of 23251342783391 in words is "twenty-three trillion, two hundred fifty-one billion, three hundred forty-two million, seven hundred eighty-three thousand, three hundred ninety-one".