331313311212 has 24 divisors (see below), whose sum is σ = 832530884976. Its totient is φ = 101942557248.

The previous prime is 331313311211. The next prime is 331313311247. The reversal of 331313311212 is 212113313133.

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

It is not an unprimeable number, because it can be changed into a prime (331313311211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1061901483 + ... + 1061901794.

It is an arithmetic number, because the mean of its divisors is an integer number (34688786874).

Almost surely, 2^331313311212 is an apocalyptic number.

It is an amenable number.

331313311212 is an abundant number, since it is smaller than the sum of its proper divisors (501217573764).

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

331313311212 is a wasteful number, since it uses less digits than its factorization.

331313311212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123803297 (or 2123803295 counting only the distinct ones).

The product of its digits is 972, while the sum is 24.

Adding to 331313311212 its reverse (212113313133), we get a palindrome (543426624345).

The spelling of 331313311212 in words is "three hundred thirty-one billion, three hundred thirteen million, three hundred eleven thousand, two hundred twelve".