12312230251 has 2 divisors, whose sum is σ = 12312230252. Its totient is φ = 12312230250.

The previous prime is 12312230233. The next prime is 12312230279. The reversal of 12312230251 is 15203221321.

It is a weak prime.

It is an emirp because it is prime and its reverse (15203221321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12312230251 - 2⁷ = 12312230123 is a prime.

It is not a weakly prime, because it can be changed into another prime (12312230951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156115125 + 6156115126.

It is an arithmetic number, because the mean of its divisors is an integer number (6156115126).

Almost surely, 2^12312230251 is an apocalyptic number.

12312230251 is a deficient number, since it is larger than the sum of its proper divisors (1).

12312230251 is an equidigital number, since it uses as much as digits as its factorization.

12312230251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 12312230251 its reverse (15203221321), we get a palindrome (27515451572).

The spelling of 12312230251 in words is "twelve billion, three hundred twelve million, two hundred thirty thousand, two hundred fifty-one".