12181324 has 12 divisors (see below), whose sum is σ = 21380184. Its totient is φ = 6072704.

The previous prime is 12181313. The next prime is 12181339. The reversal of 12181324 is 42318121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12181295 and 12181304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2902 + ... + 5725.

It is an arithmetic number, because the mean of its divisors is an integer number (1781682).

Almost surely, 2^12181324 is an apocalyptic number.

It is an amenable number.

12181324 is a deficient number, since it is larger than the sum of its proper divisors (9198860).

12181324 is a wasteful number, since it uses less digits than its factorization.

12181324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8984 (or 8982 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 12181324 is about 3490.1753537609. The cubic root of 12181324 is about 230.0902229524.

Adding to 12181324 its reverse (42318121), we get a palindrome (54499445).

The spelling of 12181324 in words is "twelve million, one hundred eighty-one thousand, three hundred twenty-four".