12323191 has 8 divisors (see below), whose sum is σ = 13076480. Its totient is φ = 11580408.

The previous prime is 12323167. The next prime is 12323197. The reversal of 12323191 is 19132321.

12323191 is digitally balanced in base 3, 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 a cyclic number.

It is not a de Polignac number, because 12323191 - 2⁷ = 12323063 is a prime.

It is a super-2 number, since 2×12323191² = 303722072844962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12323197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141 + ... + 4966.

It is an arithmetic number, because the mean of its divisors is an integer number (1634560).

Almost surely, 2^12323191 is an apocalyptic number.

12323191 is a deficient number, since it is larger than the sum of its proper divisors (753289).

12323191 is a wasteful number, since it uses less digits than its factorization.

12323191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5253.

The product of its digits is 324, while the sum is 22.

The square root of 12323191 is about 3510.4402857761. The cubic root of 12323191 is about 230.9800086396.

The spelling of 12323191 in words is "twelve million, three hundred twenty-three thousand, one hundred ninety-one".