12321004430 has 48 divisors (see below), whose sum is σ = 25809005376. Its totient is φ = 4222653120.

The previous prime is 12321004429. The next prime is 12321004447. The reversal of 12321004430 is 3440012321.

It is a congruent number.

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, 2246852 + ... + 2252328.

It is an arithmetic number, because the mean of its divisors is an integer number (537687612).

Almost surely, 2^12321004430 is an apocalyptic number.

12321004430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12321004430 is an abundant number, since it is smaller than the sum of its proper divisors (13488000946).

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

12321004430 is a wasteful number, since it uses less digits than its factorization.

12321004430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10089 (or 10082 counting only the distinct ones).

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

Adding to 12321004430 its reverse (3440012321), we get a palindrome (15761016751).

The spelling of 12321004430 in words is "twelve billion, three hundred twenty-one million, four thousand, four hundred thirty".