12000313231 has 2 divisors, whose sum is σ = 12000313232. Its totient is φ = 12000313230.

The previous prime is 12000313229. The next prime is 12000313291. The reversal of 12000313231 is 13231300021.

It is a weak prime.

It is an emirp because it is prime and its reverse (13231300021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12000313231 - 2¹ = 12000313229 is a prime.

It is a super-2 number, since 2×12000313231² (a number of 21 digits) contains 22 as substring.

Together with 12000313229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12000313291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000156615 + 6000156616.

It is an arithmetic number, because the mean of its divisors is an integer number (6000156616).

Almost surely, 2^12000313231 is an apocalyptic number.

12000313231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000313231 is an equidigital number, since it uses as much as digits as its factorization.

12000313231 is an evil number, because the sum of its binary digits is even.

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

Adding to 12000313231 its reverse (13231300021), we get a palindrome (25231613252).

The spelling of 12000313231 in words is "twelve billion, three hundred thirteen thousand, two hundred thirty-one".