12012120313 has 4 divisors (see below), whose sum is σ = 12012375168. Its totient is φ = 12011865460.

The previous prime is 12012120229. The next prime is 12012120319. The reversal of 12012120313 is 31302121021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31302121021 = 53 ⋅590606057.

It is a cyclic number.

It is not a de Polignac number, because 12012120313 - 2³³ = 3422185721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012120319) 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, 33793 + ... + 158638.

It is an arithmetic number, because the mean of its divisors is an integer number (3003093792).

Almost surely, 2^12012120313 is an apocalyptic number.

It is an amenable number.

12012120313 is a deficient number, since it is larger than the sum of its proper divisors (254855).

12012120313 is an equidigital number, since it uses as much as digits as its factorization.

12012120313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254854.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12012120313 its reverse (31302121021), we get a palindrome (43314241334).

The spelling of 12012120313 in words is "twelve billion, twelve million, one hundred twenty thousand, three hundred thirteen".