331221230313320 has 64 divisors (see below), whose sum is σ = 784474097616000. Its totient is φ = 125514971566848.

The previous prime is 331221230313179. The next prime is 331221230313349. The reversal of 331221230313320 is 23313032122133.

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, 285281741 + ... + 286440419.

It is an arithmetic number, because the mean of its divisors is an integer number (12257407775250).

Almost surely, 2^{331221230313320} is an apocalyptic number.

It is an amenable number.

331221230313320 is an abundant number, since it is smaller than the sum of its proper divisors (453252867302680).

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

331221230313320 is a wasteful number, since it uses less digits than its factorization.

331221230313320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534842 (or 1534838 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 331221230313320 its reverse (23313032122133), we get a palindrome (354534262435453).

The spelling of 331221230313320 in words is "three hundred thirty-one trillion, two hundred twenty-one billion, two hundred thirty million, three hundred thirteen thousand, three hundred twenty".