331213021120020 has 144 divisors (see below), whose sum is σ = 1022501188461312. Its totient is φ = 79633327092480.

The previous prime is 331213021119947. The next prime is 331213021120027. The reversal of 331213021120020 is 20021120312133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331213021120027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 113385276 + ... + 116269715.

It is an arithmetic number, because the mean of its divisors is an integer number (7100702697648).

Almost surely, 2^{331213021120020} is an apocalyptic number.

331213021120020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331213021120020 is an abundant number, since it is smaller than the sum of its proper divisors (691288167341292).

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

331213021120020 is a wasteful number, since it uses less digits than its factorization.

331213021120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229655102 (or 229655057 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 331213021120020 its reverse (20021120312133), we get a palindrome (351234141432153).

The spelling of 331213021120020 in words is "three hundred thirty-one trillion, two hundred thirteen billion, twenty-one million, one hundred twenty thousand, twenty".