201331323200 has 84 divisors (see below), whose sum is σ = 566172473952. Its totient is φ = 69027878400.

The previous prime is 201331323199. The next prime is 201331323217. The reversal of 201331323200 is 2323133102.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8976806 + ... + 8999205.

Almost surely, 2^201331323200 is an apocalyptic number.

201331323200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201331323200 is an abundant number, since it is smaller than the sum of its proper divisors (364841150752).

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

201331323200 is a wasteful number, since it uses less digits than its factorization.

201331323200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17976040 (or 17976025 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 201331323200 its reverse (2323133102), we get a palindrome (203654456302).

The spelling of 201331323200 in words is "two hundred one billion, three hundred thirty-one million, three hundred twenty-three thousand, two hundred".