11201001111 has 8 divisors (see below), whose sum is σ = 16594075760. Its totient is φ = 7467334056.

The previous prime is 11201001067. The next prime is 11201001137. The reversal of 11201001111 is 11110010211.

It is not a de Polignac number, because 11201001111 - 2¹⁰ = 11201000087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11201001093 and 11201001102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201071111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207425920 + ... + 207425973.

It is an arithmetic number, because the mean of its divisors is an integer number (2074259470).

Almost surely, 2^11201001111 is an apocalyptic number.

11201001111 is a deficient number, since it is larger than the sum of its proper divisors (5393074649).

11201001111 is an equidigital number, since it uses as much as digits as its factorization.

11201001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414851902 (or 414851896 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 11201001111 its reverse (11110010211), we get a palindrome (22311011322).

It can be divided in two parts, 1120100 and 1111, that added together give a palindrome (1121211).

The spelling of 11201001111 in words is "eleven billion, two hundred one million, one thousand, one hundred eleven".