331201032222320 has 160 divisors (see below), whose sum is σ = 832325612584704. Its totient is φ = 121840762982400.

The previous prime is 331201032222311. The next prime is 331201032222349. The reversal of 331201032222320 is 23222230102133.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 331201032222320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 317764430 + ... + 318805010.

Almost surely, 2^{331201032222320} 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 331201032222320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416162806292352).

331201032222320 is an abundant number, since it is smaller than the sum of its proper divisors (501124580362384).

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

331201032222320 is a wasteful number, since it uses less digits than its factorization.

331201032222320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041731 (or 1041725 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 331201032222320 its reverse (23222230102133), we get a palindrome (354423262324453).

The spelling of 331201032222320 in words is "three hundred thirty-one trillion, two hundred one billion, thirty-two million, two hundred twenty-two thousand, three hundred twenty".