2143343320 has 128 divisors (see below), whose sum is σ = 5185814400. Its totient is φ = 795418624.

The previous prime is 2143343263. The next prime is 2143343341. The reversal of 2143343320 is 233433412.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5509686 + ... + 5510074.

It is an arithmetic number, because the mean of its divisors is an integer number (40514175).

Almost surely, 2^2143343320 is an apocalyptic number.

2143343320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2143343320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2592907200).

2143343320 is an abundant number, since it is smaller than the sum of its proper divisors (3042471080).

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

2143343320 is a wasteful number, since it uses less digits than its factorization.

2143343320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 2143343320 is about 46296.2560041306. The cubic root of 2143343320 is about 1289.3294834803.

Adding to 2143343320 its reverse (233433412), we get a palindrome (2376776732).

The spelling of 2143343320 in words is "two billion, one hundred forty-three million, three hundred forty-three thousand, three hundred twenty".