123304323120525 has 72 divisors (see below), whose sum is σ = 220963995007080. Its totient is φ = 65728889856000.

The previous prime is 123304323120523. The next prime is 123304323120551. The reversal of 123304323120525 is 525021323403321.

123304323120525 is a `hidden beast` number, since 1 + 2 + 3 + 3 + 0 + 4 + 3 + 2 + 3 + 120 + 525 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 5685678105156 + 117618645015369 = 2384466^2 + 10845213^2 .

It is not a de Polignac number, because 123304323120525 - 2¹ = 123304323120523 is a prime.

It is a super-2 number, since 2×123304323120525² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123304323120525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123304323120523) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4302149695 + ... + 4302178355.

Almost surely, 2^{123304323120525} is an apocalyptic number.

123304323120525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123304323120525 is a deficient number, since it is larger than the sum of its proper divisors (97659671886555).

123304323120525 is a wasteful number, since it uses less digits than its factorization.

123304323120525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37727 (or 37719 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 123304323120525 its reverse (525021323403321), we get a palindrome (648325646523846).

The spelling of 123304323120525 in words is "one hundred twenty-three trillion, three hundred four billion, three hundred twenty-three million, one hundred twenty thousand, five hundred twenty-five".