12318831418 has 32 divisors (see below), whose sum is σ = 19503918720. Its totient is φ = 5823956160.

The previous prime is 12318831407. The next prime is 12318831419. The reversal of 12318831418 is 81413881321.

It is not an unprimeable number, because it can be changed into a prime (12318831419) 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, 2338908 + ... + 2344168.

It is an arithmetic number, because the mean of its divisors is an integer number (609497460).

Almost surely, 2^12318831418 is an apocalyptic number.

12318831418 is a deficient number, since it is larger than the sum of its proper divisors (7185087302).

12318831418 is a wasteful number, since it uses less digits than its factorization.

12318831418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5862.

The product of its digits is 36864, while the sum is 40.

The spelling of 12318831418 in words is "twelve billion, three hundred eighteen million, eight hundred thirty-one thousand, four hundred eighteen".