12442320311 has 2 divisors, whose sum is σ = 12442320312. Its totient is φ = 12442320310.

The previous prime is 12442320263. The next prime is 12442320313. The reversal of 12442320311 is 11302324421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12442320311 - 2²⁶ = 12375211447 is a prime.

It is a super-2 number, since 2×12442320311² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 12442320313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12442320313) 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, 6221160155 + 6221160156.

It is an arithmetic number, because the mean of its divisors is an integer number (6221160156).

Almost surely, 2^12442320311 is an apocalyptic number.

12442320311 is a deficient number, since it is larger than the sum of its proper divisors (1).

12442320311 is an equidigital number, since it uses as much as digits as its factorization.

12442320311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12442320311 its reverse (11302324421), we get a palindrome (23744644732).

The spelling of 12442320311 in words is "twelve billion, four hundred forty-two million, three hundred twenty thousand, three hundred eleven".