12423271 has 8 divisors (see below), whose sum is σ = 14226464. Its totient is φ = 10627200.

The previous prime is 12423263. The next prime is 12423347. The reversal of 12423271 is 17232421.

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 12423271 - 2³ = 12423263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12423211) 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 7 ways as a sum of consecutive naturals, for example, 2731 + ... + 5683.

It is an arithmetic number, because the mean of its divisors is an integer number (1778308).

Almost surely, 2^12423271 is an apocalyptic number.

12423271 is a deficient number, since it is larger than the sum of its proper divisors (1803193).

12423271 is an equidigital number, since it uses as much as digits as its factorization.

12423271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3561.

The product of its digits is 672, while the sum is 22.

The square root of 12423271 is about 3524.6660834751. Note that the first 3 decimals coincide. The cubic root of 12423271 is about 231.6036074481.

Adding to 12423271 its reverse (17232421), we get a palindrome (29655692).

It can be divided in two parts, 12423 and 271, that multiplied together give a palindrome (3366633).

The spelling of 12423271 in words is "twelve million, four hundred twenty-three thousand, two hundred seventy-one".