11142440311244 has 48 divisors (see below), whose sum is σ = 21655964069376. Its totient is φ = 5015573061840.

The previous prime is 11142440311241. The next prime is 11142440311253. The reversal of 11142440311244 is 44211304424111.

It is a self number, because there is not a number n which added to its sum of digits gives 11142440311244.

It is not an unprimeable number, because it can be changed into a prime (11142440311241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9611192 + ... + 10707935.

It is an arithmetic number, because the mean of its divisors is an integer number (451165918112).

Almost surely, 2^{11142440311244} is an apocalyptic number.

It is an amenable number.

11142440311244 is a deficient number, since it is larger than the sum of its proper divisors (10513523758132).

11142440311244 is a wasteful number, since it uses less digits than its factorization.

11142440311244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20319267 (or 20319243 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

Adding to 11142440311244 its reverse (44211304424111), we get a palindrome (55353744735355).

The spelling of 11142440311244 in words is "eleven trillion, one hundred forty-two billion, four hundred forty million, three hundred eleven thousand, two hundred forty-four".