331321201000 has 96 divisors (see below), whose sum is σ = 802949710680. Its totient is φ = 127958208000.

The previous prime is 331321200979. The next prime is 331321201027. The reversal of 331321201000 is 102123133.

It can be written as a sum of positive squares in 12 ways, for example, as 44631632644 + 286689568356 = 211262^2 + 535434^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 644020 + ... + 1037980.

Almost surely, 2^331321201000 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 331321201000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (401474855340).

331321201000 is an abundant number, since it is smaller than the sum of its proper divisors (471628509680).

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

331321201000 is a wasteful number, since it uses less digits than its factorization.

331321201000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394040 (or 393997 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 331321201000 its reverse (102123133), we get a palindrome (331423324133).

The spelling of 331321201000 in words is "three hundred thirty-one billion, three hundred twenty-one million, two hundred one thousand".