23206534447571 has 2 divisors, whose sum is σ = 23206534447572. Its totient is φ = 23206534447570.

The previous prime is 23206534447487. The next prime is 23206534447573. The reversal of 23206534447571 is 17574443560232.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23206534447571 is a prime.

Together with 23206534447573, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23206534447573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11603267223785 + 11603267223786.

It is an arithmetic number, because the mean of its divisors is an integer number (11603267223786).

Almost surely, 2^{23206534447571} is an apocalyptic number.

23206534447571 is a deficient number, since it is larger than the sum of its proper divisors (1).

23206534447571 is an equidigital number, since it uses as much as digits as its factorization.

23206534447571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16934400, while the sum is 53.

The spelling of 23206534447571 in words is "twenty-three trillion, two hundred six billion, five hundred thirty-four million, four hundred forty-seven thousand, five hundred seventy-one".