11201020201111 has 16 divisors (see below), whose sum is σ = 12187265579104. Its totient is φ = 10232583634944.

The previous prime is 11201020201103. The next prime is 11201020201157. The reversal of 11201020201111 is 11110202010211.

It is a happy number.

11201020201111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11201020201111 - 2³ = 11201020201103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11201020201091 and 11201020201100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201020201181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86877751 + ... + 87006583.

It is an arithmetic number, because the mean of its divisors is an integer number (761704098694).

Almost surely, 2^{11201020201111} is an apocalyptic number.

11201020201111 is a deficient number, since it is larger than the sum of its proper divisors (986245377993).

11201020201111 is a wasteful number, since it uses less digits than its factorization.

11201020201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197890.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11201020201111 its reverse (11110202010211), we get a palindrome (22311222211322).

The spelling of 11201020201111 in words is "eleven trillion, two hundred one billion, twenty million, two hundred one thousand, one hundred eleven".