12385123 has 4 divisors (see below), whose sum is σ = 12394080. Its totient is φ = 12376168.

The previous prime is 12385081. The next prime is 12385159. The reversal of 12385123 is 32158321.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 32158321 = 13 ⋅2473717.

It is a cyclic number.

It is not a de Polignac number, because 12385123 - 2⁹ = 12384611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12385183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1915 + ... + 5332.

It is an arithmetic number, because the mean of its divisors is an integer number (3098520).

Almost surely, 2^12385123 is an apocalyptic number.

12385123 is a deficient number, since it is larger than the sum of its proper divisors (8957).

12385123 is an equidigital number, since it uses as much as digits as its factorization.

12385123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8956.

The product of its digits is 1440, while the sum is 25.

The square root of 12385123 is about 3519.2503463096. The cubic root of 12385123 is about 231.3663035133.

The spelling of 12385123 in words is "twelve million, three hundred eighty-five thousand, one hundred twenty-three".