12312313 has 8 divisors (see below), whose sum is σ = 13382600. Its totient is φ = 11259648.

The previous prime is 12312283. The next prime is 12312331. The reversal of 12312313 is 31321321.

It can be written as a sum of positive squares in 4 ways, for example, as 3143529 + 9168784 = 1773^2 + 3028^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12312313 - 2⁵ = 12312281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12312353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2928 + ... + 5761.

It is an arithmetic number, because the mean of its divisors is an integer number (1672825).

Almost surely, 2^12312313 is an apocalyptic number.

12312313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12312313 is a deficient number, since it is larger than the sum of its proper divisors (1070287).

12312313 is a wasteful number, since it uses less digits than its factorization.

12312313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8811.

The product of its digits is 108, while the sum is 16.

The square root of 12312313 is about 3508.8905654067. The cubic root of 12312313 is about 230.9120246190.

Adding to 12312313 its reverse (31321321), we get a palindrome (43633634).

The spelling of 12312313 in words is "twelve million, three hundred twelve thousand, three hundred thirteen".