12523012715 has 4 divisors (see below), whose sum is σ = 15027615264. Its totient is φ = 10018410168.

The previous prime is 12523012661. The next prime is 12523012759. The reversal of 12523012715 is 51721032521.

12523012715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51721032521 = 94693 ⋅546197.

It is a cyclic number.

It is not a de Polignac number, because 12523012715 - 2⁸ = 12523012459 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1252301267 + ... + 1252301276.

It is an arithmetic number, because the mean of its divisors is an integer number (3756903816).

Almost surely, 2^12523012715 is an apocalyptic number.

12523012715 is a deficient number, since it is larger than the sum of its proper divisors (2504602549).

12523012715 is an equidigital number, since it uses as much as digits as its factorization.

12523012715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2504602548.

The product of its (nonzero) digits is 4200, while the sum is 29.

The spelling of 12523012715 in words is "twelve billion, five hundred twenty-three million, twelve thousand, seven hundred fifteen".