12432313 has 4 divisors (see below), whose sum is σ = 12607488. Its totient is φ = 12257140.

The previous prime is 12432311. The next prime is 12432317. The reversal of 12432313 is 31323421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12432313 - 2¹ = 12432311 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12432311) 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, 87481 + ... + 87622.

It is an arithmetic number, because the mean of its divisors is an integer number (3151872).

Almost surely, 2^12432313 is an apocalyptic number.

It is an amenable number.

12432313 is a deficient number, since it is larger than the sum of its proper divisors (175175).

12432313 is an equidigital number, since it uses as much as digits as its factorization.

12432313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175174.

The product of its digits is 432, while the sum is 19.

The square root of 12432313 is about 3525.9485248653. The cubic root of 12432313 is about 231.6597829905.

Adding to 12432313 its reverse (31323421), we get a palindrome (43755734).

The spelling of 12432313 in words is "twelve million, four hundred thirty-two thousand, three hundred thirteen".