12311715252 has 24 divisors (see below), whose sum is σ = 28729237600. Its totient is φ = 4103633376.

The previous prime is 12311715239. The next prime is 12311715289. The reversal of 12311715252 is 25251711321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249399 + ... + 294657.

Almost surely, 2^12311715252 is an apocalyptic number.

12311715252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12311715252 is an abundant number, since it is smaller than the sum of its proper divisors (16417522348).

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

12311715252 is a wasteful number, since it uses less digits than its factorization.

12311715252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67935 (or 67933 counting only the distinct ones).

The product of its digits is 4200, while the sum is 30.

The spelling of 12311715252 in words is "twelve billion, three hundred eleven million, seven hundred fifteen thousand, two hundred fifty-two".