331122120312 has 64 divisors (see below), whose sum is σ = 846612633600. Its totient is φ = 107873032320.

The previous prime is 331122120239. The next prime is 331122120317. The reversal of 331122120312 is 213021221133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331122120317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 592737 + ... + 1006767.

It is an arithmetic number, because the mean of its divisors is an integer number (13228322400).

Almost surely, 2^331122120312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331122120312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423306316800).

331122120312 is an abundant number, since it is smaller than the sum of its proper divisors (515490513288).

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

331122120312 is a wasteful number, since it uses less digits than its factorization.

331122120312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414796 (or 414792 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 331122120312 its reverse (213021221133), we get a palindrome (544143341445).

The spelling of 331122120312 in words is "three hundred thirty-one billion, one hundred twenty-two million, one hundred twenty thousand, three hundred twelve".