311303113022 has 16 divisors (see below), whose sum is σ = 510078047472. Its totient is φ = 141314483520.

The previous prime is 311303113001. The next prime is 311303113027. The reversal of 311303113022 is 220311303113.

It is a junction number, because it is equal to n+sod(n) for n = 311303112985 and 311303113003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311303113027) 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 in 7 ways as a sum of consecutive naturals, for example, 9329543 + ... + 9362850.

It is an arithmetic number, because the mean of its divisors is an integer number (31879877967).

Almost surely, 2^311303113022 is an apocalyptic number.

311303113022 is a deficient number, since it is larger than the sum of its proper divisors (198774934450).

311303113022 is a wasteful number, since it uses less digits than its factorization.

311303113022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18693163.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 311303113022 its reverse (220311303113), we get a palindrome (531614416135).

The spelling of 311303113022 in words is "three hundred eleven billion, three hundred three million, one hundred thirteen thousand, twenty-two".