12407123 has 4 divisors (see below), whose sum is σ = 12422088. Its totient is φ = 12392160.

The previous prime is 12407119. The next prime is 12407147. The reversal of 12407123 is 32170421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32170421 = 953 ⋅33757.

It is a cyclic number.

It is not a de Polignac number, because 12407123 - 2² = 12407119 is a prime.

It is a super-2 number, since 2×12407123² = 307873402274258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12407095 and 12407104.

It is not an unprimeable number, because it can be changed into a prime (12407113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6161 + ... + 7922.

It is an arithmetic number, because the mean of its divisors is an integer number (3105522).

Almost surely, 2^12407123 is an apocalyptic number.

12407123 is a deficient number, since it is larger than the sum of its proper divisors (14965).

12407123 is an equidigital number, since it uses as much as digits as its factorization.

12407123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14964.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12407123 is about 3522.3746251641. The cubic root of 12407123 is about 231.5032163719.

Adding to 12407123 its reverse (32170421), we get a palindrome (44577544).

The spelling of 12407123 in words is "twelve million, four hundred seven thousand, one hundred twenty-three".