12320899 has 4 divisors (see below), whose sum is σ = 12334120. Its totient is φ = 12307680.

The previous prime is 12320897. The next prime is 12320921. The reversal of 12320899 is 99802321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12320899 - 2¹ = 12320897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12320897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5097 + ... + 7114.

It is an arithmetic number, because the mean of its divisors is an integer number (3083530).

Almost surely, 2^12320899 is an apocalyptic number.

12320899 is a deficient number, since it is larger than the sum of its proper divisors (13221).

12320899 is a wasteful number, since it uses less digits than its factorization.

12320899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13220.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 12320899 is about 3510.1138158185. The cubic root of 12320899 is about 230.9656877004.

The spelling of 12320899 in words is "twelve million, three hundred twenty thousand, eight hundred ninety-nine".