12320321300 has 144 divisors (see below), whose sum is σ = 31443320832. Its totient is φ = 4102358400.

The previous prime is 12320321269. The next prime is 12320321303. The reversal of 12320321300 is 312302321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320321303) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5748029 + ... + 5750171.

Almost surely, 2^12320321300 is an apocalyptic number.

12320321300 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 12320321300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15721660416).

12320321300 is an abundant number, since it is smaller than the sum of its proper divisors (19122999532).

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

12320321300 is a wasteful number, since it uses less digits than its factorization.

12320321300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398 (or 2391 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12320321300 its reverse (312302321), we get a palindrome (12632623621).

The spelling of 12320321300 in words is "twelve billion, three hundred twenty million, three hundred twenty-one thousand, three hundred".