12310323013 has 4 divisors (see below), whose sum is σ = 12734816940. Its totient is φ = 11885829088.

The previous prime is 12310323007. The next prime is 12310323029. The reversal of 12310323013 is 31032301321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31032301321 = 7 ⋅4433185903.

It can be written as a sum of positive squares in 2 ways, for example, as 5267420929 + 7042902084 = 72577^2 + 83922^2 .

It is a cyclic number.

It is not a de Polignac number, because 12310323013 - 2²⁹ = 11773452101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12310323313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212246920 + ... + 212246977.

It is an arithmetic number, because the mean of its divisors is an integer number (3183704235).

Almost surely, 2^12310323013 is an apocalyptic number.

It is an amenable number.

12310323013 is a deficient number, since it is larger than the sum of its proper divisors (424493927).

12310323013 is an equidigital number, since it uses as much as digits as its factorization.

12310323013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424493926.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 12310323013 its reverse (31032301321), we get a palindrome (43342624334).

The spelling of 12310323013 in words is "twelve billion, three hundred ten million, three hundred twenty-three thousand, thirteen".