12124551531425 has 6 divisors (see below), whose sum is σ = 15034443898998. Its totient is φ = 9699641225120.

The previous prime is 12124551531403. The next prime is 12124551531427. The reversal of 12124551531425 is 52413515542121.

It can be written as a sum of positive squares in 3 ways, for example, as 13706087329 + 12110845444096 = 117073^2 + 3480064^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12124551531425 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12124551531427) 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 in 5 ways as a sum of consecutive naturals, for example, 242491030604 + ... + 242491030653.

It is an arithmetic number, because the mean of its divisors is an integer number (2505740649833).

Almost surely, 2^{12124551531425} is an apocalyptic number.

It is an amenable number.

12124551531425 is a deficient number, since it is larger than the sum of its proper divisors (2909892367573).

12124551531425 is an equidigital number, since it uses as much as digits as its factorization.

12124551531425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484982061267 (or 484982061262 counting only the distinct ones).

The product of its digits is 240000, while the sum is 41.

The spelling of 12124551531425 in words is "twelve trillion, one hundred twenty-four billion, five hundred fifty-one million, five hundred thirty-one thousand, four hundred twenty-five".