23202017491 has 2 divisors, whose sum is σ = 23202017492. Its totient is φ = 23202017490.

The previous prime is 23202017483. The next prime is 23202017513. The reversal of 23202017491 is 19471020232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23202017491 - 2³ = 23202017483 is a prime.

It is not a weakly prime, because it can be changed into another prime (23202017191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11601008745 + 11601008746.

It is an arithmetic number, because the mean of its divisors is an integer number (11601008746).

Almost surely, 2^23202017491 is an apocalyptic number.

23202017491 is a deficient number, since it is larger than the sum of its proper divisors (1).

23202017491 is an equidigital number, since it uses as much as digits as its factorization.

23202017491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 23202017491 in words is "twenty-three billion, two hundred two million, seventeen thousand, four hundred ninety-one".