320021120200 has 24 divisors (see below), whose sum is σ = 744049104930. Its totient is φ = 128008448000.

The previous prime is 320021120161. The next prime is 320021120203. The reversal of 320021120200 is 2021120023.

It can be written as a sum of positive squares in 3 ways, for example, as 313257373636 + 6763746564 = 559694^2 + 82242^2 .

It is not an unprimeable number, because it can be changed into a prime (320021120203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 800052601 + ... + 800053000.

Almost surely, 2^320021120200 is an apocalyptic number.

It is an amenable number.

320021120200 is an abundant number, since it is smaller than the sum of its proper divisors (424027984730).

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

320021120200 is a wasteful number, since it uses less digits than its factorization.

320021120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600105617 (or 1600105608 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 320021120200 its reverse (2021120023), we get a palindrome (322042240223).

The spelling of 320021120200 in words is "three hundred twenty billion, twenty-one million, one hundred twenty thousand, two hundred".