201031323200 has 84 divisors (see below), whose sum is σ = 494991828912. Its totient is φ = 80359027200.

The previous prime is 201031323187. The next prime is 201031323223. The reversal of 201031323200 is 2323130102.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2408567 + ... + 2490633.

It is an arithmetic number, because the mean of its divisors is an integer number (5892759868).

Almost surely, 2^201031323200 is an apocalyptic number.

201031323200 is a gapful number since it is divisible by the number (20) 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 201031323200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247495914456).

201031323200 is an abundant number, since it is smaller than the sum of its proper divisors (293960505712).

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

201031323200 is a wasteful number, since it uses less digits than its factorization.

201031323200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83620 (or 83605 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 201031323200 its reverse (2323130102), we get a palindrome (203354453302).

The spelling of 201031323200 in words is "two hundred one billion, thirty-one million, three hundred twenty-three thousand, two hundred".