12513138125000 has 64 divisors (see below), whose sum is σ = 29327593866480. Its totient is φ = 5005255000000.

The previous prime is 12513138124997. The next prime is 12513138125003. The reversal of 12513138125000 is 52183131521.

It is an interprime number because it is at equal distance from previous prime (12513138124997) and next prime (12513138125003).

It can be written as a sum of positive squares in 8 ways, for example, as 10702934713156 + 1810203411844 = 3271534^2 + 1345438^2 .

It is not an unprimeable number, because it can be changed into a prime (12513138125003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9385511 + ... + 10635510.

Almost surely, 2^{12513138125000} is an apocalyptic number.

12513138125000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12513138125000 is an abundant number, since it is smaller than the sum of its proper divisors (16814455741480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12513138125000 is an frugal number, since it uses more digits than its factorization.

12513138125000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20021062 (or 20021028 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 12513138125000 in words is "twelve trillion, five hundred thirteen billion, one hundred thirty-eight million, one hundred twenty-five thousand".