12402323 has 4 divisors (see below), whose sum is σ = 12530280. Its totient is φ = 12274368.

The previous prime is 12402311. The next prime is 12402349. The reversal of 12402323 is 32320421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32320421 = 7 ⋅4617203.

It is a cyclic number.

It is not a de Polignac number, because 12402323 - 2⁶ = 12402259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12402353) 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, 63833 + ... + 64026.

It is an arithmetic number, because the mean of its divisors is an integer number (3132570).

Almost surely, 2^12402323 is an apocalyptic number.

12402323 is a deficient number, since it is larger than the sum of its proper divisors (127957).

12402323 is an equidigital number, since it uses as much as digits as its factorization.

12402323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127956.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 12402323 is about 3521.6932007204. The cubic root of 12402323 is about 231.4733582877.

Adding to 12402323 its reverse (32320421), we get a palindrome (44722744).

The spelling of 12402323 in words is "twelve million, four hundred two thousand, three hundred twenty-three".