12383215317 has 24 divisors (see below), whose sum is σ = 19612026720. Its totient is φ = 7466870880.

The previous prime is 12383215309. The next prime is 12383215337. The reversal of 12383215317 is 71351238321.

It is a happy number.

12383215317 is a `hidden beast` number, since 1 + 23 + 83 + 21 + 531 + 7 = 666.

It is not a de Polignac number, because 12383215317 - 2³ = 12383215309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12383215337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 297967 + ... + 336972.

It is an arithmetic number, because the mean of its divisors is an integer number (817167780).

Almost surely, 2^12383215317 is an apocalyptic number.

It is an amenable number.

12383215317 is a deficient number, since it is larger than the sum of its proper divisors (7228811403).

12383215317 is a wasteful number, since it uses less digits than its factorization.

12383215317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635153 (or 635150 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The spelling of 12383215317 in words is "twelve billion, three hundred eighty-three million, two hundred fifteen thousand, three hundred seventeen".