12203105 has 4 divisors (see below), whose sum is σ = 14643732. Its totient is φ = 9762480.

The previous prime is 12203089. The next prime is 12203137. The reversal of 12203105 is 50130221.

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: 50130221 = 5507 ⋅9103.

It can be written as a sum of positive squares in 2 ways, for example, as 3179089 + 9024016 = 1783^2 + 3004^2 .

It is not a de Polignac number, because 12203105 - 2⁴ = 12203089 is a prime.

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 12203105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1220306 + ... + 1220315.

It is an arithmetic number, because the mean of its divisors is an integer number (3660933).

Almost surely, 2^12203105 is an apocalyptic number.

It is an amenable number.

12203105 is a deficient number, since it is larger than the sum of its proper divisors (2440627).

12203105 is an equidigital number, since it uses as much as digits as its factorization.

12203105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2440626.

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

The square root of 12203105 is about 3493.2942904943. The cubic root of 12203105 is about 230.2272800596.

Adding to 12203105 its reverse (50130221), we get a palindrome (62333326).

The spelling of 12203105 in words is "twelve million, two hundred three thousand, one hundred five".