311131223201322 has 40 divisors (see below), whose sum is σ = 727475903532576. Its totient is φ = 99201259570248.

The previous prime is 311131223201221. The next prime is 311131223201413. The reversal of 311131223201322 is 223102322131113.

311131223201322 is a `hidden beast` number, since 3 + 1 + 1 + 1 + 3 + 12 + 2 + 320 + 1 + 322 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 41751368148 + ... + 41751375599.

Almost surely, 2^{311131223201322} is an apocalyptic number.

311131223201322 is an abundant number, since it is smaller than the sum of its proper divisors (416344680331254).

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

311131223201322 is a wasteful number, since it uses less digits than its factorization.

311131223201322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83502743784 (or 83502743775 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 311131223201322 its reverse (223102322131113), we get a palindrome (534233545332435).

The spelling of 311131223201322 in words is "three hundred eleven trillion, one hundred thirty-one billion, two hundred twenty-three million, two hundred one thousand, three hundred twenty-two".