23315118919357 has 2 divisors, whose sum is σ = 23315118919358. Its totient is φ = 23315118919356.

The previous prime is 23315118919333. The next prime is 23315118919397. The reversal of 23315118919357 is 75391981151332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19488287018916 + 3826831900441 = 4414554^2 + 1956229^2 .

It is a cyclic number.

It is not a de Polignac number, because 23315118919357 - 2¹¹ = 23315118917309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23315118919397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11657559459678 + 11657559459679.

It is an arithmetic number, because the mean of its divisors is an integer number (11657559459679).

Almost surely, 2^{23315118919357} is an apocalyptic number.

It is an amenable number.

23315118919357 is a deficient number, since it is larger than the sum of its proper divisors (1).

23315118919357 is an equidigital number, since it uses as much as digits as its factorization.

23315118919357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6123600, while the sum is 58.

The spelling of 23315118919357 in words is "twenty-three trillion, three hundred fifteen billion, one hundred eighteen million, nine hundred nineteen thousand, three hundred fifty-seven".