201105601101 has 24 divisors (see below), whose sum is σ = 310508767296. Its totient is φ = 125113412160.

The previous prime is 201105601087. The next prime is 201105601117. The reversal of 201105601101 is 101106501102.

It is a happy number.

201105601101 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 0 + 560 + 1 + 101 = 666.

It is not a de Polignac number, because 201105601101 - 2⁹ = 201105600589 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201105601141) 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, 11839375 + ... + 11856348.

It is an arithmetic number, because the mean of its divisors is an integer number (12937865304).

Almost surely, 2^201105601101 is an apocalyptic number.

It is an amenable number.

201105601101 is a deficient number, since it is larger than the sum of its proper divisors (109403166195).

201105601101 is a wasteful number, since it uses less digits than its factorization.

201105601101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23695793 (or 23695790 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 18.

Subtracting from 201105601101 its reverse (101106501102), we obtain a palindrome (99999099999).

The spelling of 201105601101 in words is "two hundred one billion, one hundred five million, six hundred one thousand, one hundred one".