12312130313 has 32 divisors (see below), whose sum is σ = 14428237824. Its totient is φ = 10289296512.

The previous prime is 12312130309. The next prime is 12312130319. The reversal of 12312130313 is 31303121321.

It is a cyclic number.

It is not a de Polignac number, because 12312130313 - 2² = 12312130309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12312130319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33547856 + ... + 33548222.

It is an arithmetic number, because the mean of its divisors is an integer number (450882432).

Almost surely, 2^12312130313 is an apocalyptic number.

It is an amenable number.

12312130313 is a deficient number, since it is larger than the sum of its proper divisors (2116107511).

12312130313 is a wasteful number, since it uses less digits than its factorization.

12312130313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12312130313 its reverse (31303121321), we get a palindrome (43615251634).

The spelling of 12312130313 in words is "twelve billion, three hundred twelve million, one hundred thirty thousand, three hundred thirteen".