11111213244 has 48 divisors (see below), whose sum is σ = 27682566912. Its totient is φ = 3460313472.

The previous prime is 11111213233. The next prime is 11111213279. The reversal of 11111213244 is 44231211111.

11111213244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 11111213244.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 456249 + ... + 479984.

It is an arithmetic number, because the mean of its divisors is an integer number (576720144).

Almost surely, 2^11111213244 is an apocalyptic number.

It is an amenable number.

11111213244 is an abundant number, since it is smaller than the sum of its proper divisors (16571353668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11111213244 is a wasteful number, since it uses less digits than its factorization.

11111213244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936306 (or 936304 counting only the distinct ones).

The product of its digits is 192, while the sum is 21.

Adding to 11111213244 its reverse (44231211111), we get a palindrome (55342424355).

The spelling of 11111213244 in words is "eleven billion, one hundred eleven million, two hundred thirteen thousand, two hundred forty-four".