331312520000 has 840 divisors, whose sum is σ = 1059450467328. Its totient is φ = 102453120000.

The previous prime is 331312519973. The next prime is 331312520041. The reversal of 331312520000 is 25213133.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2608759937 + ... + 2608760063.

Almost surely, 2^331312520000 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 331312520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529725233664).

331312520000 is an abundant number, since it is smaller than the sum of its proper divisors (728137947328).

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

331312520000 is an equidigital number, since it uses as much as digits as its factorization.

331312520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 331312520000 its reverse (25213133), we get a palindrome (331337733133).

The spelling of 331312520000 in words is "three hundred thirty-one billion, three hundred twelve million, five hundred twenty thousand".