12043312 has 10 divisors (see below), whose sum is σ = 23333948. Its totient is φ = 6021648.

The previous prime is 12043289. The next prime is 12043331. The reversal of 12043312 is 21334021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 752707 = 12043312 / (1 + 2 + 0 + 4 + 3 + 3 + 1 + 2).

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 as a sum of consecutive naturals, namely, 376338 + ... + 376369.

Almost surely, 2^12043312 is an apocalyptic number.

It is an amenable number.

12043312 is a deficient number, since it is larger than the sum of its proper divisors (11290636).

12043312 is an equidigital number, since it uses as much as digits as its factorization.

12043312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752715 (or 752709 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 12043312 is about 3470.3475330289. The cubic root of 12043312 is about 229.2179614691.

Adding to 12043312 its reverse (21334021), we get a palindrome (33377333).

The spelling of 12043312 in words is "twelve million, forty-three thousand, three hundred twelve".