423343143232 has 56 divisors (see below), whose sum is σ = 853968721320. Its totient is φ = 208198287360.

The previous prime is 423343143221. The next prime is 423343143239. The reversal of 423343143232 is 232341343324.

It can be written as a sum of positive squares in 4 ways, for example, as 11764439296 + 411578703936 = 108464^2 + 641544^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423343143239) 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 7 ways as a sum of consecutive naturals, for example, 734232 + ... + 1177192.

Almost surely, 2^423343143232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423343143232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426984360660).

423343143232 is an abundant number, since it is smaller than the sum of its proper divisors (430625578088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423343143232 is a wasteful number, since it uses less digits than its factorization.

423343143232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443219 (or 443209 counting only the distinct ones).

The product of its digits is 124416, while the sum is 34.

Adding to 423343143232 its reverse (232341343324), we get a palindrome (655684486556).

The spelling of 423343143232 in words is "four hundred twenty-three billion, three hundred forty-three million, one hundred forty-three thousand, two hundred thirty-two".