201100560020 has 24 divisors (see below), whose sum is σ = 422629476864. Its totient is φ = 80379595296.

The previous prime is 201100559999. The next prime is 201100560029. The reversal of 201100560020 is 20065001102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201100560029) 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 7 ways as a sum of consecutive naturals, for example, 3762092 + ... + 3815171.

It is an arithmetic number, because the mean of its divisors is an integer number (17609561536).

Almost surely, 2^201100560020 is an apocalyptic number.

201100560020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201100560020 is an abundant number, since it is smaller than the sum of its proper divisors (221528916844).

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

201100560020 is a wasteful number, since it uses less digits than its factorization.

201100560020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7578599 (or 7578597 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 201100560020 its reverse (20065001102), we get a palindrome (221165561122).

The spelling of 201100560020 in words is "two hundred one billion, one hundred million, five hundred sixty thousand, twenty".