12312042271 has 2 divisors, whose sum is σ = 12312042272. Its totient is φ = 12312042270.

The previous prime is 12312042247. The next prime is 12312042289. The reversal of 12312042271 is 17224021321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12312042271 - 2¹⁹ = 12311517983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12312042671) 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, 6156021135 + 6156021136.

It is an arithmetic number, because the mean of its divisors is an integer number (6156021136).

Almost surely, 2^12312042271 is an apocalyptic number.

12312042271 is a deficient number, since it is larger than the sum of its proper divisors (1).

12312042271 is an equidigital number, since it uses as much as digits as its factorization.

12312042271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 12312042271 its reverse (17224021321), we get a palindrome (29536063592).

The spelling of 12312042271 in words is "twelve billion, three hundred twelve million, forty-two thousand, two hundred seventy-one".