12318930 has 48 divisors (see below), whose sum is σ = 34496280. Its totient is φ = 3032064.

The previous prime is 12318923. The next prime is 12318947. The reversal of 12318930 is 3981321.

It can be written as a sum of positive squares in 4 ways, for example, as 9566649 + 2752281 = 3093^2 + 1659^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12318894 and 12318903.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4095 + ... + 6434.

Almost surely, 2^12318930 is an apocalyptic number.

12318930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12318930 is an abundant number, since it is smaller than the sum of its proper divisors (22177350).

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

12318930 is a wasteful number, since it uses less digits than its factorization.

12318930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10555 (or 10552 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 12318930 is about 3509.8333293762. The cubic root of 12318930 is about 230.9533835207.

The spelling of 12318930 in words is "twelve million, three hundred eighteen thousand, nine hundred thirty".