12130555625 has 20 divisors (see below), whose sum is σ = 15260193300. Its totient is φ = 9639240000.

The previous prime is 12130555621. The next prime is 12130555639. The reversal of 12130555625 is 52655503121.

12130555625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 10 ways, for example, as 10476750736 + 1653804889 = 102356^2 + 40667^2 .

It is not a de Polignac number, because 12130555625 - 2² = 12130555621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12130555621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27995 + ... + 158255.

It is an arithmetic number, because the mean of its divisors is an integer number (763009665).

Almost surely, 2^12130555625 is an apocalyptic number.

It is an amenable number.

12130555625 is a deficient number, since it is larger than the sum of its proper divisors (3129637675).

12130555625 is an equidigital number, since it uses as much as digits as its factorization.

12130555625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130430 (or 130415 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 12130555625 in words is "twelve billion, one hundred thirty million, five hundred fifty-five thousand, six hundred twenty-five".