11111441243 has 24 divisors (see below), whose sum is σ = 14197432320. Its totient is φ = 8630511120.

The previous prime is 11111441239. The next prime is 11111441261. The reversal of 11111441243 is 34214411111.

11111441243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11111441243 - 2² = 11111441239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (11111441443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238043 + ... + 280868.

It is an arithmetic number, because the mean of its divisors is an integer number (591559680).

Almost surely, 2^11111441243 is an apocalyptic number.

11111441243 is a deficient number, since it is larger than the sum of its proper divisors (3085991077).

11111441243 is a wasteful number, since it uses less digits than its factorization.

11111441243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518967 (or 518960 counting only the distinct ones).

The product of its digits is 384, while the sum is 23.

Adding to 11111441243 its reverse (34214411111), we get a palindrome (45325852354).

The spelling of 11111441243 in words is "eleven billion, one hundred eleven million, four hundred forty-one thousand, two hundred forty-three".