12327431 has 8 divisors (see below), whose sum is σ = 13088160. Its totient is φ = 11570688.

The previous prime is 12327421. The next prime is 12327451. The reversal of 12327431 is 13472321.

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 12327431 - 2²² = 8133127 is a prime.

It is a super-2 number, since 2×12327431² = 303931110119522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 12327397 and 12327406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12327421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7535 + ... + 9023.

It is an arithmetic number, because the mean of its divisors is an integer number (1636020).

Almost surely, 2^12327431 is an apocalyptic number.

12327431 is a deficient number, since it is larger than the sum of its proper divisors (760729).

12327431 is a wasteful number, since it uses less digits than its factorization.

12327431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993.

The product of its digits is 1008, while the sum is 23.

The square root of 12327431 is about 3511.0441466891. The cubic root of 12327431 is about 231.0064964472.

Adding to 12327431 its reverse (13472321), we get a palindrome (25799752).

The spelling of 12327431 in words is "twelve million, three hundred twenty-seven thousand, four hundred thirty-one".