201110561101 has 4 divisors (see below), whose sum is σ = 201121888032. Its totient is φ = 201099234172.

The previous prime is 201110561081. The next prime is 201110561129. The reversal of 201110561101 is 101165011102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201110561101 - 2²¹ = 201108463949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201110561801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5636791 + ... + 5672356.

It is an arithmetic number, because the mean of its divisors is an integer number (50280472008).

Almost surely, 2^201110561101 is an apocalyptic number.

It is an amenable number.

201110561101 is a deficient number, since it is larger than the sum of its proper divisors (11326931).

201110561101 is a wasteful number, since it uses less digits than its factorization.

201110561101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11326930.

The product of its (nonzero) digits is 60, while the sum is 19.

Adding to 201110561101 its reverse (101165011102), we get a palindrome (302275572203).

The spelling of 201110561101 in words is "two hundred one billion, one hundred ten million, five hundred sixty-one thousand, one hundred one".