23023020997 has 2 divisors, whose sum is σ = 23023020998. Its totient is φ = 23023020996.

The previous prime is 23023020989. The next prime is 23023021039. The reversal of 23023020997 is 79902032032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14822088516 + 8200932481 = 121746^2 + 90559^2 .

It is a cyclic number.

It is not a de Polignac number, because 23023020997 - 2³ = 23023020989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23023020197) 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, 11511510498 + 11511510499.

It is an arithmetic number, because the mean of its divisors is an integer number (11511510499).

Almost surely, 2^23023020997 is an apocalyptic number.

It is an amenable number.

23023020997 is a deficient number, since it is larger than the sum of its proper divisors (1).

23023020997 is an equidigital number, since it uses as much as digits as its factorization.

23023020997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 37.

The spelling of 23023020997 in words is "twenty-three billion, twenty-three million, twenty thousand, nine hundred ninety-seven".