12310205 has 4 divisors (see below), whose sum is σ = 14772252. Its totient is φ = 9848160.

The previous prime is 12310187. The next prime is 12310219. The reversal of 12310205 is 50201321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50201321 = 137 ⋅366433.

It can be written as a sum of positive squares in 2 ways, for example, as 1267876 + 11042329 = 1126^2 + 3323^2 .

It is not a de Polignac number, because 12310205 - 2¹⁰ = 12309181 is a prime.

It is a super-2 number, since 2×12310205² = 303082294284050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12310205.

It is a congruent number.

It is an unprimeable number.

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, 1231016 + ... + 1231025.

It is an arithmetic number, because the mean of its divisors is an integer number (3693063).

Almost surely, 2^12310205 is an apocalyptic number.

It is an amenable number.

12310205 is a deficient number, since it is larger than the sum of its proper divisors (2462047).

12310205 is an equidigital number, since it uses as much as digits as its factorization.

12310205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462046.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 12310205 is about 3508.5901727047. The cubic root of 12310205 is about 230.8988456621.

Adding to 12310205 its reverse (50201321), we get a palindrome (62511526).

The spelling of 12310205 in words is "twelve million, three hundred ten thousand, two hundred five".