12321321099 has 8 divisors (see below), whose sum is σ = 17142707712. Its totient is φ = 7857074280.

The previous prime is 12321321083. The next prime is 12321321127. The reversal of 12321321099 is 99012312321.

12321321099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12321321099 - 2⁴ = 12321321083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12321321029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89284867 + ... + 89285004.

It is an arithmetic number, because the mean of its divisors is an integer number (2142838464).

Almost surely, 2^12321321099 is an apocalyptic number.

12321321099 is a deficient number, since it is larger than the sum of its proper divisors (4821386613).

12321321099 is a wasteful number, since it uses less digits than its factorization.

12321321099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178569897.

The product of its (nonzero) digits is 5832, while the sum is 33.

The spelling of 12321321099 in words is "twelve billion, three hundred twenty-one million, three hundred twenty-one thousand, ninety-nine".