12431332 has 6 divisors (see below), whose sum is σ = 21754838. Its totient is φ = 6215664.

The previous prime is 12431329. The next prime is 12431357. The reversal of 12431332 is 23313421.

It can be written as a sum of positive squares in only one way, i.e., 7529536 + 4901796 = 2744^2 + 2214^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1553913 + ... + 1553920.

Almost surely, 2^12431332 is an apocalyptic number.

It is an amenable number.

12431332 is a deficient number, since it is larger than the sum of its proper divisors (9323506).

12431332 is a wasteful number, since it uses less digits than its factorization.

12431332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3107837 (or 3107835 counting only the distinct ones).

The product of its digits is 432, while the sum is 19.

The square root of 12431332 is about 3525.8094106177. The cubic root of 12431332 is about 231.6536896158.

Adding to 12431332 its reverse (23313421), we get a palindrome (35744753).

The spelling of 12431332 in words is "twelve million, four hundred thirty-one thousand, three hundred thirty-two".