123315325540525 has 12 divisors (see below), whose sum is σ = 152911281753364. Its totient is φ = 98652081024000.

The previous prime is 123315325540523. The next prime is 123315325540733. The reversal of 123315325540525 is 525045523513321.

It can be written as a sum of positive squares in 6 ways, for example, as 11421283852521 + 111894041688004 = 3379539^2 + 10577998^2 .

It is not a de Polignac number, because 123315325540525 - 2¹ = 123315325540523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123315325540523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10521055 + ... + 18902995.

Almost surely, 2^{123315325540525} is an apocalyptic number.

It is an amenable number.

123315325540525 is a deficient number, since it is larger than the sum of its proper divisors (29595956212839).

123315325540525 is an equidigital number, since it uses as much as digits as its factorization.

123315325540525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8970432 (or 8970427 counting only the distinct ones).

The product of its (nonzero) digits is 2700000, while the sum is 46.

The spelling of 123315325540525 in words is "one hundred twenty-three trillion, three hundred fifteen billion, three hundred twenty-five million, five hundred forty thousand, five hundred twenty-five".