12322312 has 8 divisors (see below), whose sum is σ = 23104350. Its totient is φ = 6161152.

The previous prime is 12322309. The next prime is 12322333. The reversal of 12322312 is 21322321.

It can be written as a sum of positive squares in only one way, i.e., 12292036 + 30276 = 3506^2 + 174^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770137 + ... + 770152.

Almost surely, 2^12322312 is an apocalyptic number.

It is an amenable number.

12322312 is a deficient number, since it is larger than the sum of its proper divisors (10782038).

12322312 is a wasteful number, since it uses less digits than its factorization.

12322312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540295 (or 1540291 counting only the distinct ones).

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

The square root of 12322312 is about 3510.3150855728. The cubic root of 12322312 is about 230.9745166569.

Adding to 12322312 its reverse (21322321), we get a palindrome (33644633).

Subtracting 12322312 from its reverse (21322321), we obtain a palindrome (9000009).

The spelling of 12322312 in words is "twelve million, three hundred twenty-two thousand, three hundred twelve".