12421323332020 has 96 divisors (see below), whose sum is σ = 28349140377600. Its totient is φ = 4554264528000.

The previous prime is 12421323332009. The next prime is 12421323332023. The reversal of 12421323332020 is 2023332312421.

It is a self number, because there is not a number n which added to its sum of digits gives 12421323332020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421323332023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59396401 + ... + 59605159.

It is an arithmetic number, because the mean of its divisors is an integer number (295303545600).

Almost surely, 2^{12421323332020} is an apocalyptic number.

12421323332020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12421323332020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14174570188800).

12421323332020 is an abundant number, since it is smaller than the sum of its proper divisors (15927817045580).

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

12421323332020 is a wasteful number, since it uses less digits than its factorization.

12421323332020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213869 (or 213867 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 12421323332020 its reverse (2023332312421), we get a palindrome (14444655644441).

The spelling of 12421323332020 in words is "twelve trillion, four hundred twenty-one billion, three hundred twenty-three million, three hundred thirty-two thousand, twenty".