12311715251 has 8 divisors (see below), whose sum is σ = 13435015104. Its totient is φ = 11189090920.

The previous prime is 12311715239. The next prime is 12311715289. The reversal of 12311715251 is 15251711321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12311715251 - 2¹⁸ = 12311453107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12311715211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130385 + ... + 204018.

It is an arithmetic number, because the mean of its divisors is an integer number (1679376888).

Almost surely, 2^12311715251 is an apocalyptic number.

12311715251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12311715251 is a deficient number, since it is larger than the sum of its proper divisors (1123299853).

12311715251 is a wasteful number, since it uses less digits than its factorization.

12311715251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337761.

The product of its digits is 2100, while the sum is 29.

The spelling of 12311715251 in words is "twelve billion, three hundred eleven million, seven hundred fifteen thousand, two hundred fifty-one".