12203032320 has 216 divisors, whose sum is σ = 43786085616. Its totient is φ = 3254059008.

The previous prime is 12203032313. The next prime is 12203032357. The reversal of 12203032320 is 2323030221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (216).

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 = 12203032293 and 12203032302.

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 23 ways as a sum of consecutive naturals, for example, 291424 + ... + 330656.

Almost surely, 2^12203032320 is an apocalyptic number.

12203032320 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 12203032320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21893042808).

12203032320 is an abundant number, since it is smaller than the sum of its proper divisors (31583053296).

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

12203032320 is an frugal number, since it uses more digits than its factorization.

12203032320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39269 (or 39243 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 12203032320 its reverse (2323030221), we get a palindrome (14526062541).

The spelling of 12203032320 in words is "twelve billion, two hundred three million, thirty-two thousand, three hundred twenty".