12203423 has 4 divisors (see below), whose sum is σ = 12212040. Its totient is φ = 12194808.

The previous prime is 12203419. The next prime is 12203431. The reversal of 12203423 is 32430221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12203423 - 2² = 12203419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203623) 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, 1628 + ... + 5201.

It is an arithmetic number, because the mean of its divisors is an integer number (3053010).

Almost surely, 2^12203423 is an apocalyptic number.

12203423 is a deficient number, since it is larger than the sum of its proper divisors (8617).

12203423 is an equidigital number, since it uses as much as digits as its factorization.

12203423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8616.

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

The square root of 12203423 is about 3493.3398059736. The cubic root of 12203423 is about 230.2292798687.

Adding to 12203423 its reverse (32430221), we get a palindrome (44633644).

The spelling of 12203423 in words is "twelve million, two hundred three thousand, four hundred twenty-three".