311220323023 has 2 divisors, whose sum is σ = 311220323024. Its totient is φ = 311220323022.

The previous prime is 311220323017. The next prime is 311220323041. The reversal of 311220323023 is 320323022113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 311220323023 - 2²⁵ = 311186768591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311220322985 and 311220323003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311220323123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155610161511 + 155610161512.

It is an arithmetic number, because the mean of its divisors is an integer number (155610161512).

Almost surely, 2^311220323023 is an apocalyptic number.

311220323023 is a deficient number, since it is larger than the sum of its proper divisors (1).

311220323023 is an equidigital number, since it uses as much as digits as its factorization.

311220323023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 311220323023 its reverse (320323022113), we get a palindrome (631543345136).

The spelling of 311220323023 in words is "three hundred eleven billion, two hundred twenty million, three hundred twenty-three thousand, twenty-three".