311303113122 has 32 divisors (see below), whose sum is σ = 624428034048. Its totient is φ = 103464366336.

The previous prime is 311303113097. The next prime is 311303113129. The reversal of 311303113122 is 221311303113.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (311303113129) 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 in 15 ways as a sum of consecutive naturals, for example, 4284448 + ... + 4356500.

It is an arithmetic number, because the mean of its divisors is an integer number (19513376064).

Almost surely, 2^311303113122 is an apocalyptic number.

311303113122 is an abundant number, since it is smaller than the sum of its proper divisors (313124920926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311303113122 is a wasteful number, since it uses less digits than its factorization.

311303113122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74154.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 311303113122 its reverse (221311303113), we get a palindrome (532614416235).

The spelling of 311303113122 in words is "three hundred eleven billion, three hundred three million, one hundred thirteen thousand, one hundred twenty-two".