12311204 has 6 divisors (see below), whose sum is σ = 21544614. Its totient is φ = 6155600.

The previous prime is 12311191. The next prime is 12311207. The reversal of 12311204 is 40211321.

It can be written as a sum of positive squares in only one way, i.e., 11888704 + 422500 = 3448^2 + 650^2 .

It is not an unprimeable number, because it can be changed into a prime (12311207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1538897 + ... + 1538904.

It is an arithmetic number, because the mean of its divisors is an integer number (3590769).

Almost surely, 2^12311204 is an apocalyptic number.

It is an amenable number.

12311204 is a deficient number, since it is larger than the sum of its proper divisors (9233410).

12311204 is a wasteful number, since it uses less digits than its factorization.

12311204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3077805 (or 3077803 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12311204 is about 3508.7325346911. The cubic root of 12311204 is about 230.9050914749.

Adding to 12311204 its reverse (40211321), we get a palindrome (52522525).

The spelling of 12311204 in words is "twelve million, three hundred eleven thousand, two hundred four".