12320144300 has 72 divisors (see below), whose sum is σ = 27147397872. Its totient is φ = 4852224000.

The previous prime is 12320144299. The next prime is 12320144339. The reversal of 12320144300 is 344102321.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5919260 + ... + 5921340.

Almost surely, 2^12320144300 is an apocalyptic number.

12320144300 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 12320144300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13573698936).

12320144300 is an abundant number, since it is smaller than the sum of its proper divisors (14827253572).

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

12320144300 is a wasteful number, since it uses less digits than its factorization.

12320144300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2979 (or 2972 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12320144300 its reverse (344102321), we get a palindrome (12664246621).

The spelling of 12320144300 in words is "twelve billion, three hundred twenty million, one hundred forty-four thousand, three hundred".