12318120 has 48 divisors (see below), whose sum is σ = 40035060. Its totient is φ = 3284736.

The previous prime is 12318109. The next prime is 12318143. The reversal of 12318120 is 2181321.

It can be written as a sum of positive squares in 2 ways, for example, as 11737476 + 580644 = 3426^2 + 762^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12318093 and 12318102.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16749 + ... + 17468.

Almost surely, 2^12318120 is an apocalyptic number.

12318120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12318120 is an abundant number, since it is smaller than the sum of its proper divisors (27716940).

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

12318120 is a wasteful number, since it uses less digits than its factorization.

12318120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34234 (or 34227 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 12318120 is about 3509.7179373847. The cubic root of 12318120 is about 230.9483214918.

Adding to 12318120 its reverse (2181321), we get a palindrome (14499441).

It can be divided in two parts, 123181 and 20, that added together give a square (123201 = 351²).

The spelling of 12318120 in words is "twelve million, three hundred eighteen thousand, one hundred twenty".