12321323020 has 12 divisors (see below), whose sum is σ = 25874778384. Its totient is φ = 4928529200.

The previous prime is 12321323017. The next prime is 12321323089. The reversal of 12321323020 is 2032312321.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308033056 + ... + 308033095.

It is an arithmetic number, because the mean of its divisors is an integer number (2156231532).

Almost surely, 2^12321323020 is an apocalyptic number.

12321323020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12321323020 is an abundant number, since it is smaller than the sum of its proper divisors (13553455364).

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

12321323020 is a wasteful number, since it uses less digits than its factorization.

12321323020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616066160 (or 616066158 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12321323020 its reverse (2032312321), we get a palindrome (14353635341).

The spelling of 12321323020 in words is "twelve billion, three hundred twenty-one million, three hundred twenty-three thousand, twenty".