12318038194 has 128 divisors (see below), whose sum is σ = 25633677312. Its totient is φ = 4289725440.

The previous prime is 12318038191. The next prime is 12318038297. The reversal of 12318038194 is 49183081321.

It is not an unprimeable number, because it can be changed into a prime (12318038191) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9452947 + ... + 9454249.

It is an arithmetic number, because the mean of its divisors is an integer number (200263104).

Almost surely, 2^12318038194 is an apocalyptic number.

12318038194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12318038194 is an abundant number, since it is smaller than the sum of its proper divisors (13315639118).

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

12318038194 is a wasteful number, since it uses less digits than its factorization.

12318038194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 12318038194 in words is "twelve billion, three hundred eighteen million, thirty-eight thousand, one hundred ninety-four".