201110561106 has 128 divisors (see below), whose sum is σ = 521486622720. Its totient is φ = 50210917632.

The previous prime is 201110561081. The next prime is 201110561129. The reversal of 201110561106 is 601165011102.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15419620 + ... + 15432656.

It is an arithmetic number, because the mean of its divisors is an integer number (4074114240).

Almost surely, 2^201110561106 is an apocalyptic number.

201110561106 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 201110561106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260743311360).

201110561106 is an abundant number, since it is smaller than the sum of its proper divisors (320376061614).

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

201110561106 is a wasteful number, since it uses less digits than its factorization.

201110561106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14568.

The product of its (nonzero) digits is 360, while the sum is 24.

Adding to 201110561106 its reverse (601165011102), we get a palindrome (802275572208).

The spelling of 201110561106 in words is "two hundred one billion, one hundred ten million, five hundred sixty-one thousand, one hundred six".