12316123 has 4 divisors (see below), whose sum is σ = 12964360. Its totient is φ = 11667888.

The previous prime is 12316111. The next prime is 12316133. The reversal of 12316123 is 32161321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32161321 = 2543 ⋅12647.

It is a cyclic number.

It is not a de Polignac number, because 12316123 - 2⁵ = 12316091 is a prime.

It is a super-2 number, since 2×12316123² = 303373771502258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 648217 = 12316123 / (1 + 2 + 3 + 1 + 6 + 1 + 2 + 3).

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 12316123.

It is not an unprimeable number, because it can be changed into a prime (12316133) 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, 324090 + ... + 324127.

It is an arithmetic number, because the mean of its divisors is an integer number (3241090).

Almost surely, 2^12316123 is an apocalyptic number.

12316123 is a deficient number, since it is larger than the sum of its proper divisors (648237).

12316123 is an equidigital number, since it uses as much as digits as its factorization.

12316123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648236.

The product of its digits is 216, while the sum is 19.

The square root of 12316123 is about 3509.4334300568. The cubic root of 12316123 is about 230.9358404551.

Adding to 12316123 its reverse (32161321), we get a palindrome (44477444).

The spelling of 12316123 in words is "twelve million, three hundred sixteen thousand, one hundred twenty-three".