12000312331 has 4 divisors (see below), whose sum is σ = 13714642672. Its totient is φ = 10285981992.

The previous prime is 12000312299. The next prime is 12000312347. The reversal of 12000312331 is 13321300021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12000312331 - 2⁵ = 12000312299 is a prime.

It is a super-2 number, since 2×12000312331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12000313331) 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, 857165160 + ... + 857165173.

It is an arithmetic number, because the mean of its divisors is an integer number (3428660668).

Almost surely, 2^12000312331 is an apocalyptic number.

12000312331 is a deficient number, since it is larger than the sum of its proper divisors (1714330341).

12000312331 is an equidigital number, since it uses as much as digits as its factorization.

12000312331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714330340.

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

Adding to 12000312331 its reverse (13321300021), we get a palindrome (25321612352).

The spelling of 12000312331 in words is "twelve billion, three hundred twelve thousand, three hundred thirty-one".