311222312322 has 32 divisors (see below), whose sum is σ = 636130713600. Its totient is φ = 101462829648.

The previous prime is 311222312311. The next prime is 311222312351. The reversal of 311222312322 is 223213222113.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 311222312292 and 311222312301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22329 + ... + 789267.

It is an arithmetic number, because the mean of its divisors is an integer number (19879084800).

Almost surely, 2^311222312322 is an apocalyptic number.

311222312322 is an abundant number, since it is smaller than the sum of its proper divisors (324908401278).

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

311222312322 is a wasteful number, since it uses less digits than its factorization.

311222312322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768430.

The product of its digits is 1728, while the sum is 24.

Adding to 311222312322 its reverse (223213222113), we get a palindrome (534435534435).

The spelling of 311222312322 in words is "three hundred eleven billion, two hundred twenty-two million, three hundred twelve thousand, three hundred twenty-two".