12321103320 has 128 divisors (see below), whose sum is σ = 41115902400. Its totient is φ = 3281983488.

The previous prime is 12321103303. The next prime is 12321103351. The reversal of 12321103320 is 2330112321.

12321103320 is a `hidden beast` number, since 1 + 2 + 321 + 10 + 332 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12321103293 and 12321103302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1049322 + ... + 1060998.

Almost surely, 2^12321103320 is an apocalyptic number.

12321103320 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 12321103320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20557951200).

12321103320 is an abundant number, since it is smaller than the sum of its proper divisors (28794799080).

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

12321103320 is a wasteful number, since it uses less digits than its factorization.

12321103320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12674 (or 12664 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12321103320 its reverse (2330112321), we get a palindrome (14651215641).

Subtracting from 12321103320 its reverse (2330112321), we obtain a palindrome (9990990999).

The spelling of 12321103320 in words is "twelve billion, three hundred twenty-one million, one hundred three thousand, three hundred twenty".