12321412 has 6 divisors (see below), whose sum is σ = 21562478. Its totient is φ = 6160704.

The previous prime is 12321409. The next prime is 12321431. The reversal of 12321412 is 21412321.

It can be written as a sum of positive squares in only one way, i.e., 10536516 + 1784896 = 3246^2 + 1336^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1540173 + ... + 1540180.

Almost surely, 2^12321412 is an apocalyptic number.

It is an amenable number.

12321412 is a deficient number, since it is larger than the sum of its proper divisors (9241066).

12321412 is a wasteful number, since it uses less digits than its factorization.

12321412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080357 (or 3080355 counting only the distinct ones).

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

The square root of 12321412 is about 3510.1868896114. The cubic root of 12321412 is about 230.9688931958.

Adding to 12321412 its reverse (21412321), we get a palindrome (33733733).

Subtracting 12321412 from its reverse (21412321), we obtain a palindrome (9090909).

The spelling of 12321412 in words is "twelve million, three hundred twenty-one thousand, four hundred twelve".