13111400244 has 96 divisors (see below), whose sum is σ = 31479791616. Its totient is φ = 4246300800.

The previous prime is 13111400213. The next prime is 13111400287. The reversal of 13111400244 is 44200411131.

It is a self number, because there is not a number n which added to its sum of digits gives 13111400244.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15853759 + ... + 15854585.

It is an arithmetic number, because the mean of its divisors is an integer number (327914496).

Almost surely, 2^13111400244 is an apocalyptic number.

It is an amenable number.

13111400244 is an abundant number, since it is smaller than the sum of its proper divisors (18368391372).

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

13111400244 is a wasteful number, since it uses less digits than its factorization.

13111400244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165 (or 1163 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 13111400244 its reverse (44200411131), we get a palindrome (57311811375).

The spelling of 13111400244 in words is "thirteen billion, one hundred eleven million, four hundred thousand, two hundred forty-four".