123012544514225 has 12 divisors (see below), whose sum is σ = 153190214240076. Its totient is φ = 97987674938880.

The previous prime is 123012544514183. The next prime is 123012544514243. The reversal of 123012544514225 is 522415445210321.

It can be written as a sum of positive squares in 6 ways, for example, as 13212178140736 + 109800366373489 = 3634856^2 + 10478567^2 .

It is not a de Polignac number, because 123012544514225 - 2²⁴ = 123012527737009 is a prime.

It is a super-2 number, since 2×123012544514225² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10559010872 + ... + 10559022521.

It is an arithmetic number, because the mean of its divisors is an integer number (12765851186673).

Almost surely, 2^{123012544514225} is an apocalyptic number.

It is an amenable number.

123012544514225 is a deficient number, since it is larger than the sum of its proper divisors (30177669725851).

123012544514225 is a wasteful number, since it uses less digits than its factorization.

123012544514225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21118033636 (or 21118033631 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 41.

Adding to 123012544514225 its reverse (522415445210321), we get a palindrome (645427989724546).

The spelling of 123012544514225 in words is "one hundred twenty-three trillion, twelve billion, five hundred forty-four million, five hundred fourteen thousand, two hundred twenty-five".