13144040111444 has 48 divisors (see below), whose sum is σ = 25176089917440. Its totient is φ = 5954825900160.

The previous prime is 13144040111443. The next prime is 13144040111509. The reversal of 13144040111444 is 44411104044131.

It is a self number, because there is not a number n which added to its sum of digits gives 13144040111444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13144040111443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98113034 + ... + 98246910.

It is an arithmetic number, because the mean of its divisors is an integer number (524501873280).

Almost surely, 2^{13144040111444} is an apocalyptic number.

It is an amenable number.

13144040111444 is a deficient number, since it is larger than the sum of its proper divisors (12032049805996).

13144040111444 is a wasteful number, since it uses less digits than its factorization.

13144040111444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141248 (or 141246 counting only the distinct ones).

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

Adding to 13144040111444 its reverse (44411104044131), we get a palindrome (57555144155575).

The spelling of 13144040111444 in words is "thirteen trillion, one hundred forty-four billion, forty million, one hundred eleven thousand, four hundred forty-four".