331202002120 has 128 divisors (see below), whose sum is σ = 818674231680. Its totient is φ = 119590912000.

The previous prime is 331202002093. The next prime is 331202002129. The reversal of 331202002120 is 21200202133.

It is a junction number, because it is equal to n+sod(n) for n = 331202002094 and 331202002103.

It is not an unprimeable number, because it can be changed into a prime (331202002129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73910280 + ... + 73914760.

It is an arithmetic number, because the mean of its divisors is an integer number (6395892435).

Almost surely, 2^331202002120 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 331202002120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409337115840).

331202002120 is an abundant number, since it is smaller than the sum of its proper divisors (487472229560).

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

331202002120 is a wasteful number, since it uses less digits than its factorization.

331202002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5647 (or 5643 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 331202002120 its reverse (21200202133), we get a palindrome (352402204253).

The spelling of 331202002120 in words is "three hundred thirty-one billion, two hundred two million, two thousand, one hundred twenty".