311122313311 has 2 divisors, whose sum is σ = 311122313312. Its totient is φ = 311122313310.

The previous prime is 311122313309. The next prime is 311122313317. The reversal of 311122313311 is 113313221113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 311122313311 - 2¹ = 311122313309 is a prime.

Together with 311122313309, 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 (311122313317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155561156655 + 155561156656.

It is an arithmetic number, because the mean of its divisors is an integer number (155561156656).

Almost surely, 2^311122313311 is an apocalyptic number.

311122313311 is a deficient number, since it is larger than the sum of its proper divisors (1).

311122313311 is an equidigital number, since it uses as much as digits as its factorization.

311122313311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 22.

Adding to 311122313311 its reverse (113313221113), we get a palindrome (424435534424).

The spelling of 311122313311 in words is "three hundred eleven billion, one hundred twenty-two million, three hundred thirteen thousand, three hundred eleven".