12313205 has 4 divisors (see below), whose sum is σ = 14775852. Its totient is φ = 9850560.

The previous prime is 12313187. The next prime is 12313229. The reversal of 12313205 is 50231321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2961841 + 9351364 = 1721^2 + 3058^2 .

It is not a de Polignac number, because 12313205 - 2⁶ = 12313141 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a zygodrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231316 + ... + 1231325.

It is an arithmetic number, because the mean of its divisors is an integer number (3693963).

Almost surely, 2^12313205 is an apocalyptic number.

It is an amenable number.

12313205 is a deficient number, since it is larger than the sum of its proper divisors (2462647).

12313205 is an equidigital number, since it uses as much as digits as its factorization.

12313205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462646.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 12313205 is about 3509.0176688070. The cubic root of 12313205 is about 230.9176008405.

Adding to 12313205 its reverse (50231321), we get a palindrome (62544526).

The spelling of 12313205 in words is "twelve million, three hundred thirteen thousand, two hundred five".