331321020000 has 480 divisors, whose sum is σ = 1133523756288. Its totient is φ = 84634368000.

The previous prime is 331321019959. The next prime is 331321020029. The reversal of 331321020000 is 20123133.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 136738789 + ... + 136741211.

Almost surely, 2^331321020000 is an apocalyptic number.

331321020000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331321020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (566761878144).

331321020000 is an abundant number, since it is smaller than the sum of its proper divisors (802202736288).

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

331321020000 is a wasteful number, since it uses less digits than its factorization.

331321020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552 (or 2529 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 331321020000 its reverse (20123133), we get a palindrome (331341143133).

The spelling of 331321020000 in words is "three hundred thirty-one billion, three hundred twenty-one million, twenty thousand".