11213440244 has 24 divisors (see below), whose sum is σ = 20794906440. Its totient is φ = 5272580096.

The previous prime is 11213440241. The next prime is 11213440247. The reversal of 11213440244 is 44204431211.

It is an interprime number because it is at equal distance from previous prime (11213440241) and next prime (11213440247).

It can be written as a sum of positive squares in 4 ways, for example, as 9396975844 + 1816464400 = 96938^2 + 42620^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213440241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16484 + ... + 150660.

It is an arithmetic number, because the mean of its divisors is an integer number (866454435).

Almost surely, 2^11213440244 is an apocalyptic number.

It is an amenable number.

11213440244 is a deficient number, since it is larger than the sum of its proper divisors (9581466196).

11213440244 is a wasteful number, since it uses less digits than its factorization.

11213440244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135427 (or 135425 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 11213440244 its reverse (44204431211), we get a palindrome (55417871455).

The spelling of 11213440244 in words is "eleven billion, two hundred thirteen million, four hundred forty thousand, two hundred forty-four".