12203109 has 8 divisors (see below), whose sum is σ = 18078720. Its totient is φ = 8135388.

The previous prime is 12203089. The next prime is 12203137. The reversal of 12203109 is 90130221.

It is a happy number.

12203109 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 12203109 - 2⁵ = 12203077 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12203091 and 12203100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203309) 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, 225957 + ... + 226010.

It is an arithmetic number, because the mean of its divisors is an integer number (2259840).

Almost surely, 2^12203109 is an apocalyptic number.

It is an amenable number.

12203109 is a deficient number, since it is larger than the sum of its proper divisors (5875611).

12203109 is an equidigital number, since it uses as much as digits as its factorization.

12203109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451976 (or 451970 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 12203109 is about 3493.2948630197. The cubic root of 12203109 is about 230.2273052147.

The spelling of 12203109 in words is "twelve million, two hundred three thousand, one hundred nine".