123013242520117 has 2 divisors, whose sum is σ = 123013242520118. Its totient is φ = 123013242520116.

The previous prime is 123013242520033. The next prime is 123013242520127. The reversal of 123013242520117 is 711025242310321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116740051046161 + 6273191473956 = 10804631^2 + 2504634^2 .

It is a cyclic number.

It is not a de Polignac number, because 123013242520117 - 2³⁵ = 122978882781749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123013242520127) 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, 61506621260058 + 61506621260059.

It is an arithmetic number, because the mean of its divisors is an integer number (61506621260059).

Almost surely, 2^{123013242520117} is an apocalyptic number.

It is an amenable number.

123013242520117 is a deficient number, since it is larger than the sum of its proper divisors (1).

123013242520117 is an equidigital number, since it uses as much as digits as its factorization.

123013242520117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

Adding to 123013242520117 its reverse (711025242310321), we get a palindrome (834038484830438).

The spelling of 123013242520117 in words is "one hundred twenty-three trillion, thirteen billion, two hundred forty-two million, five hundred twenty thousand, one hundred seventeen".