12430205 has 4 divisors (see below), whose sum is σ = 14916252. Its totient is φ = 9944160.

The previous prime is 12430193. The next prime is 12430207. The reversal of 12430205 is 50203421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50203421 = 1229 ⋅40849.

It can be written as a sum of positive squares in 2 ways, for example, as 8357881 + 4072324 = 2891^2 + 2018^2 .

It is not a de Polignac number, because 12430205 - 2¹⁰ = 12429181 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 (12430207) 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 3 ways as a sum of consecutive naturals, for example, 1243016 + ... + 1243025.

It is an arithmetic number, because the mean of its divisors is an integer number (3729063).

Almost surely, 2^12430205 is an apocalyptic number.

It is an amenable number.

12430205 is a deficient number, since it is larger than the sum of its proper divisors (2486047).

12430205 is an equidigital number, since it uses as much as digits as its factorization.

12430205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486046.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 12430205 is about 3525.6495855374. The cubic root of 12430205 is about 231.6466889823.

Adding to 12430205 its reverse (50203421), we get a palindrome (62633626).

The spelling of 12430205 in words is "twelve million, four hundred thirty thousand, two hundred five".