331212110121320 has 32 divisors (see below), whose sum is σ = 745228207573920. Its totient is φ = 132484673417280.

The previous prime is 331212110121311. The next prime is 331212110121349. The reversal of 331212110121320 is 23121011212133.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28812959 + ... + 38634321.

It is an arithmetic number, because the mean of its divisors is an integer number (23288381486685).

Almost surely, 2^{331212110121320} is an apocalyptic number.

It is an amenable number.

331212110121320 is an abundant number, since it is smaller than the sum of its proper divisors (414016097452600).

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

331212110121320 is a wasteful number, since it uses less digits than its factorization.

331212110121320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10664465 (or 10664461 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 331212110121320 its reverse (23121011212133), we get a palindrome (354333121333453).

The spelling of 331212110121320 in words is "three hundred thirty-one trillion, two hundred twelve billion, one hundred ten million, one hundred twenty-one thousand, three hundred twenty".