12118320 has 60 divisors (see below), whose sum is σ = 40699776. Its totient is φ = 3231360.

The previous prime is 12118313. The next prime is 12118349. The reversal of 12118320 is 2381121.

It is a tau number, because it is divible by the number of its divisors (60).

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 = 12118293 and 12118302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7696 + ... + 9135.

Almost surely, 2^12118320 is an apocalyptic number.

12118320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12118320 is an abundant number, since it is smaller than the sum of its proper divisors (28581456).

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

12118320 is a wasteful number, since it uses less digits than its factorization.

12118320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16850 (or 16841 counting only the distinct ones).

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

The square root of 12118320 is about 3481.1377450483. The cubic root of 12118320 is about 229.6928477167.

Adding to 12118320 its reverse (2381121), we get a palindrome (14499441).

The spelling of 12118320 in words is "twelve million, one hundred eighteen thousand, three hundred twenty".