4143231220 has 96 divisors (see below), whose sum is σ = 9246182400. Its totient is φ = 1556966400.

The previous prime is 4143231193. The next prime is 4143231221. The reversal of 4143231220 is 221323414.

It is a junction number, because it is equal to n+sod(n) for n = 4143231191 and 4143231200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4143231221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9888171 + ... + 9888589.

It is an arithmetic number, because the mean of its divisors is an integer number (96314400).

Almost surely, 2^4143231220 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 4143231220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4623091200).

4143231220 is an abundant number, since it is smaller than the sum of its proper divisors (5102951180).

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

4143231220 is a wasteful number, since it uses less digits than its factorization.

4143231220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 4143231220 is about 64367.9362726505. The cubic root of 4143231220 is about 1606.1264104317.

Adding to 4143231220 its reverse (221323414), we get a palindrome (4364554634).

The spelling of 4143231220 in words is "four billion, one hundred forty-three million, two hundred thirty-one thousand, two hundred twenty".