11111211244443 has 16 divisors (see below), whose sum is σ = 14834607942816. Its totient is φ = 7397648670720.

The previous prime is 11111211244439. The next prime is 11111211244481. The reversal of 11111211244443 is 34444211211111.

It is not a de Polignac number, because 11111211244443 - 2² = 11111211244439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11111211244443.

It is not an unprimeable number, because it can be changed into a prime (11111211244643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9803763 + ... + 10878243.

It is an arithmetic number, because the mean of its divisors is an integer number (927162996426).

Almost surely, 2^{11111211244443} is an apocalyptic number.

11111211244443 is a deficient number, since it is larger than the sum of its proper divisors (3723396698373).

11111211244443 is a wasteful number, since it uses less digits than its factorization.

11111211244443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079054.

The product of its digits is 3072, while the sum is 30.

Adding to 11111211244443 its reverse (34444211211111), we get a palindrome (45555422455554).

The spelling of 11111211244443 in words is "eleven trillion, one hundred eleven billion, two hundred eleven million, two hundred forty-four thousand, four hundred forty-three".