11144444111 has 4 divisors (see below), whose sum is σ = 11144761992. Its totient is φ = 11144126232.

The previous prime is 11144444093. The next prime is 11144444153.

It is a happy number.

11144444111 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11144444111 - 2³⁰ = 10070702287 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11144444711) 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, 98756 + ... + 179001.

It is an arithmetic number, because the mean of its divisors is an integer number (2786190498).

Almost surely, 2^11144444111 is an apocalyptic number.

11144444111 is a deficient number, since it is larger than the sum of its proper divisors (317881).

11144444111 is an equidigital number, since it uses as much as digits as its factorization.

11144444111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317880.

The product of its digits is 1024, while the sum is 26.

The spelling of 11144444111 in words is "eleven billion, one hundred forty-four million, four hundred forty-four thousand, one hundred eleven".