12512321510513 has 4 divisors (see below), whose sum is σ = 13649805284208. Its totient is φ = 11374837736820.

The previous prime is 12512321510503. The next prime is 12512321510561. The reversal of 12512321510513 is 31501512321521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12512321510513 - 2¹⁰ = 12512321509489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12512321510513.

It is not an unprimeable number, because it can be changed into a prime (12512321510503) 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, 568741886831 + ... + 568741886852.

It is an arithmetic number, because the mean of its divisors is an integer number (3412451321052).

Almost surely, 2^{12512321510513} is an apocalyptic number.

It is an amenable number.

12512321510513 is a deficient number, since it is larger than the sum of its proper divisors (1137483773695).

12512321510513 is a wasteful number, since it uses less digits than its factorization.

12512321510513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137483773694.

The product of its (nonzero) digits is 9000, while the sum is 32.

The spelling of 12512321510513 in words is "twelve trillion, five hundred twelve billion, three hundred twenty-one million, five hundred ten thousand, five hundred thirteen".