12331313 has 4 divisors (see below), whose sum is σ = 12377088. Its totient is φ = 12285540.

The previous prime is 12331309. The next prime is 12331337. The reversal of 12331313 is 31313321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12331313 - 2² = 12331309 is a prime.

It is a super-2 number, since 2×12331313² = 304122560607938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12331291 and 12331300.

It is not an unprimeable number, because it can be changed into a prime (12331303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22481 + ... + 23022.

It is an arithmetic number, because the mean of its divisors is an integer number (3094272).

Almost surely, 2^12331313 is an apocalyptic number.

It is an amenable number.

12331313 is a deficient number, since it is larger than the sum of its proper divisors (45775).

12331313 is an equidigital number, since it uses as much as digits as its factorization.

12331313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45774.

The product of its digits is 162, while the sum is 17.

The square root of 12331313 is about 3511.5969301729. The cubic root of 12331313 is about 231.0307424587.

Adding to 12331313 its reverse (31313321), we get a palindrome (43644634).

The spelling of 12331313 in words is "twelve million, three hundred thirty-one thousand, three hundred thirteen".