12102305 has 16 divisors (see below), whose sum is σ = 14961024. Its totient is φ = 9394560.

The previous prime is 12102289. The next prime is 12102329. The reversal of 12102305 is 50320121.

It is a happy number.

It is not a de Polignac number, because 12102305 - 2⁴ = 12102289 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 12102305.

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 15 ways as a sum of consecutive naturals, for example, 25682 + ... + 26148.

It is an arithmetic number, because the mean of its divisors is an integer number (935064).

Almost surely, 2^12102305 is an apocalyptic number.

It is an amenable number.

12102305 is a deficient number, since it is larger than the sum of its proper divisors (2858719).

12102305 is an equidigital number, since it uses as much as digits as its factorization.

12102305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616.

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

The square root of 12102305 is about 3478.8367308628. The cubic root of 12102305 is about 229.5916193670.

Adding to 12102305 its reverse (50320121), we get a palindrome (62422426).

The spelling of 12102305 in words is "twelve million, one hundred two thousand, three hundred five".