12500125125 has 16 divisors (see below), whose sum is σ = 20800208832. Its totient is φ = 6666733200.

The previous prime is 12500125087. The next prime is 12500125129. The reversal of 12500125125 is 52152100521.

It is not a de Polignac number, because 12500125125 - 2⁸ = 12500124869 is a prime.

12500125125 is a modest number, since divided by 125125 gives 12500 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 12500125095 and 12500125104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500125129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16666459 + ... + 16667208.

It is an arithmetic number, because the mean of its divisors is an integer number (1300013052).

Almost surely, 2^12500125125 is an apocalyptic number.

12500125125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12500125125 is a deficient number, since it is larger than the sum of its proper divisors (8300083707).

12500125125 is an equidigital number, since it uses as much as digits as its factorization.

12500125125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33333685 (or 33333675 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

Adding to 12500125125 its reverse (52152100521), we get a palindrome (64652225646).

The spelling of 12500125125 in words is "twelve billion, five hundred million, one hundred twenty-five thousand, one hundred twenty-five".