23173896901 has 2 divisors, whose sum is σ = 23173896902. Its totient is φ = 23173896900.

The previous prime is 23173896847. The next prime is 23173896947. The reversal of 23173896901 is 10969837132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21097272001 + 2076624900 = 145249^2 + 45570^2 .

It is a cyclic number.

It is not a de Polignac number, because 23173896901 - 2⁷ = 23173896773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23173896971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11586948450 + 11586948451.

It is an arithmetic number, because the mean of its divisors is an integer number (11586948451).

Almost surely, 2^23173896901 is an apocalyptic number.

It is an amenable number.

23173896901 is a deficient number, since it is larger than the sum of its proper divisors (1).

23173896901 is an equidigital number, since it uses as much as digits as its factorization.

23173896901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 23173896901 in words is "twenty-three billion, one hundred seventy-three million, eight hundred ninety-six thousand, nine hundred one".