12403223 has 8 divisors (see below), whose sum is σ = 14464800. Its totient is φ = 10631040.

The previous prime is 12403199. The next prime is 12403243. The reversal of 12403223 is 32230421.

12403223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12403223 - 2²² = 8208919 is a prime.

It is a super-3 number, since 3×12403223³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17738 + ... + 18423.

It is an arithmetic number, because the mean of its divisors is an integer number (1808100).

Almost surely, 2^12403223 is an apocalyptic number.

12403223 is a deficient number, since it is larger than the sum of its proper divisors (2061577).

12403223 is an frugal number, since it uses more digits than its factorization.

12403223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36182 (or 36168 counting only the distinct ones).

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

The square root of 12403223 is about 3521.8209778465. The cubic root of 12403223 is about 231.4789572652.

Adding to 12403223 its reverse (32230421), we get a palindrome (44633644).

The spelling of 12403223 in words is "twelve million, four hundred three thousand, two hundred twenty-three".