12432303331 has 4 divisors (see below), whose sum is σ = 14208346672. Its totient is φ = 10656259992.

The previous prime is 12432303293. The next prime is 12432303343. The reversal of 12432303331 is 13330323421.

12432303331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13330323421 = 36109 ⋅369169.

It is a de Polignac number, because none of the positive numbers 2^k-12432303331 is a prime.

It is a super-2 number, since 2×12432303331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12432303296 and 12432303305.

It is not an unprimeable number, because it can be changed into a prime (12432303931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888021660 + ... + 888021673.

It is an arithmetic number, because the mean of its divisors is an integer number (3552086668).

Almost surely, 2^12432303331 is an apocalyptic number.

12432303331 is a deficient number, since it is larger than the sum of its proper divisors (1776043341).

12432303331 is an equidigital number, since it uses as much as digits as its factorization.

12432303331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776043340.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 12432303331 its reverse (13330323421), we get a palindrome (25762626752).

The spelling of 12432303331 in words is "twelve billion, four hundred thirty-two million, three hundred three thousand, three hundred thirty-one".