12513750013 has 4 divisors (see below), whose sum is σ = 12514489308. Its totient is φ = 12513010720.

The previous prime is 12513749993. The next prime is 12513750083. The reversal of 12513750013 is 31005731521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 263023524 + 12250726489 = 16218^2 + 110683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12513750013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12513750083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343648 + ... + 378313.

It is an arithmetic number, because the mean of its divisors is an integer number (3128622327).

Almost surely, 2^12513750013 is an apocalyptic number.

It is an amenable number.

12513750013 is a deficient number, since it is larger than the sum of its proper divisors (739295).

12513750013 is an equidigital number, since it uses as much as digits as its factorization.

12513750013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739294.

The product of its (nonzero) digits is 3150, while the sum is 28.

The spelling of 12513750013 in words is "twelve billion, five hundred thirteen million, seven hundred fifty thousand, thirteen".