201131020200 has 96 divisors (see below), whose sum is σ = 680188563360. Its totient is φ = 48759033600.

The previous prime is 201131020193. The next prime is 201131020201. The reversal of 201131020200 is 2020131102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (201131020201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15230599 + ... + 15243798.

It is an arithmetic number, because the mean of its divisors is an integer number (7085297535).

Almost surely, 2^201131020200 is an apocalyptic number.

201131020200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201131020200 is an abundant number, since it is smaller than the sum of its proper divisors (479057543160).

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

201131020200 is a wasteful number, since it uses less digits than its factorization.

201131020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30474427 (or 30474418 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 201131020200 its reverse (2020131102), we get a palindrome (203151151302).

The spelling of 201131020200 in words is "two hundred one billion, one hundred thirty-one million, twenty thousand, two hundred".