12423 has 8 divisors (see below), whose sum is σ = 17136. Its totient is φ = 8000.

The previous prime is 12421. The next prime is 12433. The reversal of 12423 is 32421.

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 12423 - 2¹ = 12421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12399 and 12408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73 + ... + 173.

It is an arithmetic number, because the mean of its divisors is an integer number (2142).

2¹²⁴²³ is an apocalyptic number.

12423 is a deficient number, since it is larger than the sum of its proper divisors (4713).

12423 is a wasteful number, since it uses less digits than its factorization.

12423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145.

The product of its digits is 48, while the sum is 12.

The square root of 12423 is about 111.4585124609. The cubic root of 12423 is about 23.1601923376.

Adding to 12423 its reverse (32421), we get a palindrome (44844).

It can be divided in two parts, 12 and 423, that added together give a triangular number (435 = T₂₉).

The spelling of 12423 in words is "twelve thousand, four hundred twenty-three", and thus it is an iban number.