311222132020330 has 64 divisors (see below), whose sum is σ = 598806085812480. Its totient is φ = 116054432640000.

The previous prime is 311222132020321. The next prime is 311222132020379. The reversal of 311222132020330 is 33020231222113.

It is a junction number, because it is equal to n+sod(n) for n = 311222132020295 and 311222132020304.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12425070 + ... + 27871609.

It is an arithmetic number, because the mean of its divisors is an integer number (9356345090820).

Almost surely, 2^{311222132020330} is an apocalyptic number.

311222132020330 is a deficient number, since it is larger than the sum of its proper divisors (287583953792150).

311222132020330 is a wasteful number, since it uses less digits than its factorization.

311222132020330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40297135.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 311222132020330 its reverse (33020231222113), we get a palindrome (344242363242443).

The spelling of 311222132020330 in words is "three hundred eleven trillion, two hundred twenty-two billion, one hundred thirty-two million, twenty thousand, three hundred thirty".