331212333232 has 80 divisors (see below), whose sum is σ = 707424141600. Its totient is φ = 148969728000.

The previous prime is 331212333211. The next prime is 331212333239. The reversal of 331212333232 is 232333212133.

It is a self number, because there is not a number n which added to its sum of digits gives 331212333232.

It is not an unprimeable number, because it can be changed into a prime (331212333239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35422894 + ... + 35432242.

It is an arithmetic number, because the mean of its divisors is an integer number (8842801770).

Almost surely, 2^331212333232 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 331212333232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353712070800).

331212333232 is an abundant number, since it is smaller than the sum of its proper divisors (376211808368).

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

331212333232 is a wasteful number, since it uses less digits than its factorization.

331212333232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11462 (or 11456 counting only the distinct ones).

The product of its digits is 11664, while the sum is 28.

Adding to 331212333232 its reverse (232333212133), we get a palindrome (563545545365).

The spelling of 331212333232 in words is "three hundred thirty-one billion, two hundred twelve million, three hundred thirty-three thousand, two hundred thirty-two".