12321231330 has 32 divisors (see below), whose sum is σ = 30856650624. Its totient is φ = 3142806656.

The previous prime is 12321231319. The next prime is 12321231347. The reversal of 12321231330 is 3313212321.

It is a junction number, because it is equal to n+sod(n) for n = 12321231297 and 12321231306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8927739 + ... + 8929118.

It is an arithmetic number, because the mean of its divisors is an integer number (964270332).

Almost surely, 2^12321231330 is an apocalyptic number.

12321231330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12321231330 is an abundant number, since it is smaller than the sum of its proper divisors (18535419294).

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

12321231330 is a wasteful number, since it uses less digits than its factorization.

12321231330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17856890.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12321231330 its reverse (3313212321), we get a palindrome (15634443651).

The spelling of 12321231330 in words is "twelve billion, three hundred twenty-one million, two hundred thirty-one thousand, three hundred thirty".