11201111101 has 4 divisors (see below), whose sum is σ = 11300236092. Its totient is φ = 11101986112.

The previous prime is 11201111039. The next prime is 11201111171. The reversal of 11201111101 is 10111110211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10111110211 = 109 ⋅92762479.

It can be written as a sum of positive squares in 2 ways, for example, as 1802002500 + 9399108601 = 42450^2 + 96949^2 .

It is a cyclic number.

It is not a de Polignac number, because 11201111101 - 2⁹ = 11201110589 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 (11201111171) 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, 49562326 + ... + 49562551.

It is an arithmetic number, because the mean of its divisors is an integer number (2825059023).

Almost surely, 2^11201111101 is an apocalyptic number.

It is an amenable number.

11201111101 is a deficient number, since it is larger than the sum of its proper divisors (99124991).

11201111101 is an equidigital number, since it uses as much as digits as its factorization.

11201111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99124990.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 11201111101 its reverse (10111110211), we get a palindrome (21312221312).

The spelling of 11201111101 in words is "eleven billion, two hundred one million, one hundred eleven thousand, one hundred one".