12340223 has 8 divisors (see below), whose sum is σ = 14158848. Its totient is φ = 10535544.

The previous prime is 12340199. The next prime is 12340271. The reversal of 12340223 is 32204321.

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 12340223 - 2⁸ = 12339967 is a prime.

It is a super-2 number, since 2×12340223² = 304562207379458, 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 (12340423) 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, 1511 + ... + 5192.

It is an arithmetic number, because the mean of its divisors is an integer number (1769856).

Almost surely, 2^12340223 is an apocalyptic number.

12340223 is a deficient number, since it is larger than the sum of its proper divisors (1818625).

12340223 is an equidigital number, since it uses as much as digits as its factorization.

12340223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6973.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 12340223 is about 3512.8653546642. The cubic root of 12340223 is about 231.0863728777.

Adding to 12340223 its reverse (32204321), we get a palindrome (44544544).

The spelling of 12340223 in words is "twelve million, three hundred forty thousand, two hundred twenty-three".