12321097 has 4 divisors (see below), whose sum is σ = 12583296. Its totient is φ = 12058900.

The previous prime is 12321083. The next prime is 12321121. The reversal of 12321097 is 79012321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12321097 - 2¹⁹ = 11796809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12321017) 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, 131029 + ... + 131122.

It is an arithmetic number, because the mean of its divisors is an integer number (3145824).

Almost surely, 2^12321097 is an apocalyptic number.

It is an amenable number.

12321097 is a deficient number, since it is larger than the sum of its proper divisors (262199).

12321097 is an equidigital number, since it uses as much as digits as its factorization.

12321097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262198.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 12321097 is about 3510.1420199189. The cubic root of 12321097 is about 230.9669249197.

The spelling of 12321097 in words is "twelve million, three hundred twenty-one thousand, ninety-seven".