23042545217 has 2 divisors, whose sum is σ = 23042545218. Its totient is φ = 23042545216.

The previous prime is 23042545181. The next prime is 23042545243. The reversal of 23042545217 is 71254524032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18898275841 + 4144269376 = 137471^2 + 64376^2 .

It is a cyclic number.

It is not a de Polignac number, because 23042545217 - 2¹⁴ = 23042528833 is a prime.

It is not a weakly prime, because it can be changed into another prime (23042545417) 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, 11521272608 + 11521272609.

It is an arithmetic number, because the mean of its divisors is an integer number (11521272609).

Almost surely, 2^23042545217 is an apocalyptic number.

It is an amenable number.

23042545217 is a deficient number, since it is larger than the sum of its proper divisors (1).

23042545217 is an equidigital number, since it uses as much as digits as its factorization.

23042545217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 35.

The spelling of 23042545217 in words is "twenty-three billion, forty-two million, five hundred forty-five thousand, two hundred seventeen".