311322113220211 has 4 divisors (see below), whose sum is σ = 311322335204232. Its totient is φ = 311321891236192.

The previous prime is 311322113220113. The next prime is 311322113220227. The reversal of 311322113220211 is 112022311223113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 311322113220211 - 2⁴⁷ = 170584624864883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311322113220271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108874870 + ... + 111697723.

It is an arithmetic number, because the mean of its divisors is an integer number (77830583801058).

Almost surely, 2^{311322113220211} is an apocalyptic number.

311322113220211 is a deficient number, since it is larger than the sum of its proper divisors (221984021).

311322113220211 is a wasteful number, since it uses less digits than its factorization.

311322113220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221984020.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 311322113220211 its reverse (112022311223113), we get a palindrome (423344424443324).

The spelling of 311322113220211 in words is "three hundred eleven trillion, three hundred twenty-two billion, one hundred thirteen million, two hundred twenty thousand, two hundred eleven".