12312113 has 12 divisors (see below), whose sum is σ = 13685700. Its totient is φ = 11066880.

The previous prime is 12312109. The next prime is 12312119. The reversal of 12312113 is 31121321.

It can be written as a sum of positive squares in 2 ways, for example, as 8690704 + 3621409 = 2948^2 + 1903^2 .

It is not a de Polignac number, because 12312113 - 2² = 12312109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12312119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11213 + ... + 12261.

It is an arithmetic number, because the mean of its divisors is an integer number (1140475).

Almost surely, 2^12312113 is an apocalyptic number.

It is an amenable number.

12312113 is a deficient number, since it is larger than the sum of its proper divisors (1373587).

12312113 is a wasteful number, since it uses less digits than its factorization.

12312113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168 (or 1157 counting only the distinct ones).

The product of its digits is 36, while the sum is 14.

The square root of 12312113 is about 3508.8620662545. The cubic root of 12312113 is about 230.9107743082.

Adding to 12312113 its reverse (31121321), we get a palindrome (43433434).

The spelling of 12312113 in words is "twelve million, three hundred twelve thousand, one hundred thirteen".