12317823 has 24 divisors (see below), whose sum is σ = 20811648. Its totient is φ = 6873552.

The previous prime is 12317813. The next prime is 12317827. The reversal of 12317823 is 32871321.

It is not a de Polignac number, because 12317823 - 2⁹ = 12317311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12317827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 436 + ... + 4982.

It is an arithmetic number, because the mean of its divisors is an integer number (867152).

Almost surely, 2^12317823 is an apocalyptic number.

12317823 is a deficient number, since it is larger than the sum of its proper divisors (8493825).

12317823 is a wasteful number, since it uses less digits than its factorization.

12317823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4603 (or 4600 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 12317823 is about 3509.6756260373. The cubic root of 12317823 is about 230.9464653589.

It can be divided in two parts, 123178 and 23, that added together give a square (123201 = 351²).

The spelling of 12317823 in words is "twelve million, three hundred seventeen thousand, eight hundred twenty-three".