12321203320 has 32 divisors (see below), whose sum is σ = 28678665600. Its totient is φ = 4758533248.

The previous prime is 12321203303. The next prime is 12321203327. The reversal of 12321203320 is 2330212321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321203327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5309704 + ... + 5312023.

It is an arithmetic number, because the mean of its divisors is an integer number (896208300).

Almost surely, 2^12321203320 is an apocalyptic number.

12321203320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12321203320 is an abundant number, since it is smaller than the sum of its proper divisors (16357462280).

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

12321203320 is a wasteful number, since it uses less digits than its factorization.

12321203320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10621767 (or 10621763 counting only the distinct ones).

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

Adding to 12321203320 its reverse (2330212321), we get a palindrome (14651415641).

Subtracting from 12321203320 its reverse (2330212321), we obtain a palindrome (9990990999).

The spelling of 12321203320 in words is "twelve billion, three hundred twenty-one million, two hundred three thousand, three hundred twenty".