311313320122 has 16 divisors (see below), whose sum is σ = 546091140672. Its totient is φ = 130317203520.

The previous prime is 311313320113. The next prime is 311313320159. The reversal of 311313320122 is 221023313113.

It is a junction number, because it is equal to n+sod(n) for n = 311313320093 and 311313320102.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 258565279 + ... + 258566482.

It is an arithmetic number, because the mean of its divisors is an integer number (34130696292).

Almost surely, 2^311313320122 is an apocalyptic number.

311313320122 is a deficient number, since it is larger than the sum of its proper divisors (234777820550).

311313320122 is a wasteful number, since it uses less digits than its factorization.

311313320122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517131813.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 311313320122 its reverse (221023313113), we get a palindrome (532336633235).

The spelling of 311313320122 in words is "three hundred eleven billion, three hundred thirteen million, three hundred twenty thousand, one hundred twenty-two".