12318371 has 8 divisors (see below), whose sum is σ = 13548864. Its totient is φ = 11128320.

The previous prime is 12318349. The next prime is 12318379. The reversal of 12318371 is 17381321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12318371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12318371.

It is not an unprimeable number, because it can be changed into a prime (12318379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9470 + ... + 10691.

It is an arithmetic number, because the mean of its divisors is an integer number (1693608).

Almost surely, 2^12318371 is an apocalyptic number.

12318371 is a deficient number, since it is larger than the sum of its proper divisors (1230493).

12318371 is a wasteful number, since it uses less digits than its factorization.

12318371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20221.

The product of its digits is 1008, while the sum is 26.

The square root of 12318371 is about 3509.7536950618. The cubic root of 12318371 is about 230.9498901195.

Adding to 12318371 its reverse (17381321), we get a palindrome (29699692).

The spelling of 12318371 in words is "twelve million, three hundred eighteen thousand, three hundred seventy-one".