12307823817 has 16 divisors (see below), whose sum is σ = 16542840960. Its totient is φ = 8139168000.

The previous prime is 12307823813. The next prime is 12307823849. The reversal of 12307823817 is 71832870321.

It is not a de Polignac number, because 12307823817 - 2² = 12307823813 is a prime.

It is a super-4 number, since 4×12307823817⁴ (a number of 41 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (12307823813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302017 + ... + 340337.

It is an arithmetic number, because the mean of its divisors is an integer number (1033927560).

Almost surely, 2^12307823817 is an apocalyptic number.

It is an amenable number.

12307823817 is a deficient number, since it is larger than the sum of its proper divisors (4235017143).

12307823817 is a wasteful number, since it uses less digits than its factorization.

12307823817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39184.

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 12307823817 in words is "twelve billion, three hundred seven million, eight hundred twenty-three thousand, eight hundred seventeen".