12321020000 has 60 divisors (see below), whose sum is σ = 30311606556. Its totient is φ = 4928400000.

The previous prime is 12321019999. The next prime is 12321020051. The reversal of 12321020000 is 2012321.

It is a happy number.

12321020000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 288026 + ... + 328025.

Almost surely, 2^12321020000 is an apocalyptic number.

12321020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12321020000 is an abundant number, since it is smaller than the sum of its proper divisors (17990586556).

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

12321020000 is an frugal number, since it uses more digits than its factorization.

12321020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616081 (or 616058 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 12321020000 its reverse (2012321), we get a palindrome (12323032321).

The spelling of 12321020000 in words is "twelve billion, three hundred twenty-one million, twenty thousand".