331220302120312 has 64 divisors (see below), whose sum is σ = 689000915145600. Its totient is φ = 147998213005440.

The previous prime is 331220302120289. The next prime is 331220302120343. The reversal of 331220302120312 is 213021203022133.

It is a congruent number.

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, 165288238 + ... + 167280130.

It is an arithmetic number, because the mean of its divisors is an integer number (10765639299150).

Almost surely, 2^{331220302120312} is an apocalyptic number.

It is an amenable number.

331220302120312 is an abundant number, since it is smaller than the sum of its proper divisors (357780613025288).

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

331220302120312 is a wasteful number, since it uses less digits than its factorization.

331220302120312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023996 (or 2023992 counting only the distinct ones).

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

Adding to 331220302120312 its reverse (213021203022133), we get a palindrome (544241505142445).

The spelling of 331220302120312 in words is "three hundred thirty-one trillion, two hundred twenty billion, three hundred two million, one hundred twenty thousand, three hundred twelve".