12123442245 has 8 divisors (see below), whose sum is σ = 19397507616. Its totient is φ = 6465835856.

The previous prime is 12123442217. The next prime is 12123442267. The reversal of 12123442245 is 54224432121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12123442245 - 2¹⁷ = 12123311173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404114727 + ... + 404114756.

It is an arithmetic number, because the mean of its divisors is an integer number (2424688452).

Almost surely, 2^12123442245 is an apocalyptic number.

12123442245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12123442245 is a deficient number, since it is larger than the sum of its proper divisors (7274065371).

12123442245 is an equidigital number, since it uses as much as digits as its factorization.

12123442245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808229491.

The product of its digits is 15360, while the sum is 30.

Adding to 12123442245 its reverse (54224432121), we get a palindrome (66347874366).

The spelling of 12123442245 in words is "twelve billion, one hundred twenty-three million, four hundred forty-two thousand, two hundred forty-five".