23117356472117 has 2 divisors, whose sum is σ = 23117356472118. Its totient is φ = 23117356472116.

The previous prime is 23117356472101. The next prime is 23117356472141. The reversal of 23117356472117 is 71127465371132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19570767340996 + 3546589131121 = 4423886^2 + 1883239^2 .

It is a cyclic number.

It is not a de Polignac number, because 23117356472117 - 2⁴ = 23117356472101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23117356472167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11558678236058 + 11558678236059.

It is an arithmetic number, because the mean of its divisors is an integer number (11558678236059).

Almost surely, 2^{23117356472117} is an apocalyptic number.

It is an amenable number.

23117356472117 is a deficient number, since it is larger than the sum of its proper divisors (1).

23117356472117 is an equidigital number, since it uses as much as digits as its factorization.

23117356472117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1481760, while the sum is 50.

The spelling of 23117356472117 in words is "twenty-three trillion, one hundred seventeen billion, three hundred fifty-six million, four hundred seventy-two thousand, one hundred seventeen".