Adding to 5144321305421 its reverse (1245031234415), we get a palindrome (6389352539836).
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-5144321305421 is a prime.
It is a Duffinian number.
It is a congruent number.
Almost surely, 25144321305421 is an apocalyptic number.
It is an amenable number.
5144321305421 is a wasteful number, since it uses less digits than its factorization.
5144321305421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 638092.
The spelling of 5144321305421 in words is "five trillion, one hundred forty-four billion, three hundred twenty-one million, three hundred five thousand, four hundred twenty-one".