23115046911721 has 2 divisors, whose sum is σ = 23115046911722. Its totient is φ = 23115046911720.

The previous prime is 23115046911659. The next prime is 23115046911751. The reversal of 23115046911721 is 12711964051132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14868242436096 + 8246804475625 = 3855936^2 + 2871725^2 .

It is a cyclic number.

It is not a de Polignac number, because 23115046911721 - 2¹⁵ = 23115046878953 is a prime.

It is not a weakly prime, because it can be changed into another prime (23115046911751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11557523455860 + 11557523455861.

It is an arithmetic number, because the mean of its divisors is an integer number (11557523455861).

Almost surely, 2^{23115046911721} is an apocalyptic number.

It is an amenable number.

23115046911721 is a deficient number, since it is larger than the sum of its proper divisors (1).

23115046911721 is an equidigital number, since it uses as much as digits as its factorization.

23115046911721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 43.

The spelling of 23115046911721 in words is "twenty-three trillion, one hundred fifteen billion, forty-six million, nine hundred eleven thousand, seven hundred twenty-one".