12431212 has 6 divisors (see below), whose sum is σ = 21754628. Its totient is φ = 6215604.

The previous prime is 12431197. The next prime is 12431239. The reversal of 12431212 is 21213421.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1553898 + ... + 1553905.

Almost surely, 2^12431212 is an apocalyptic number.

It is an amenable number.

12431212 is a deficient number, since it is larger than the sum of its proper divisors (9323416).

12431212 is a wasteful number, since it uses less digits than its factorization.

12431212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3107807 (or 3107805 counting only the distinct ones).

The product of its digits is 96, while the sum is 16.

The square root of 12431212 is about 3525.7923932075. The cubic root of 12431212 is about 231.6529442268.

Adding to 12431212 its reverse (21213421), we get a palindrome (33644633).

The spelling of 12431212 in words is "twelve million, four hundred thirty-one thousand, two hundred twelve".