12331344 has 20 divisors (see below), whose sum is σ = 31856096. Its totient is φ = 4110432.

The previous prime is 12331337. The next prime is 12331369. The reversal of 12331344 is 44313321.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12331344.

It is a congruent number.

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, 128404 + ... + 128499.

Almost surely, 2^12331344 is an apocalyptic number.

It is an amenable number.

12331344 is an abundant number, since it is smaller than the sum of its proper divisors (19524752).

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

12331344 is a wasteful number, since it uses less digits than its factorization.

12331344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256914 (or 256908 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 12331344 is about 3511.6013441164. The cubic root of 12331344 is about 231.0309360566.

Adding to 12331344 its reverse (44313321), we get a palindrome (56644665).

The spelling of 12331344 in words is "twelve million, three hundred thirty-one thousand, three hundred forty-four".