It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
Almost surely, 212321013320501 is an apocalyptic number.
It is an amenable number.
12321013320501 is an equidigital number, since it uses as much as digits as its factorization.
12321013320501 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 84241491.
Adding to 12321013320501 its reverse (10502331012321), we get a palindrome (22823344332822).
The spelling of 12321013320501 in words is "twelve trillion, three hundred twenty-one billion, thirteen million, three hundred twenty thousand, five hundred one".