4231232320 has 168 divisors, whose sum is σ = 11766270600. Its totient is φ = 1445068800.

The previous prime is 4231232297. The next prime is 4231232321. The reversal of 4231232320 is 232321324.

It can be written as a sum of positive squares in 4 ways, for example, as 1213268224 + 3017964096 = 34832^2 + 54936^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4231232291 and 4231232300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4231232321) 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 23 ways as a sum of consecutive naturals, for example, 7040020 + ... + 7040620.

It is an arithmetic number, because the mean of its divisors is an integer number (70037325).

Almost surely, 2^4231232320 is an apocalyptic number.

4231232320 is a gapful number since it is divisible by the number (40) 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 4231232320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5883135300).

4231232320 is an abundant number, since it is smaller than the sum of its proper divisors (7535038280).

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

4231232320 is a wasteful number, since it uses less digits than its factorization.

4231232320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 4231232320 is about 65047.9232566267. The cubic root of 4231232320 is about 1617.4180687215.

Adding to 4231232320 its reverse (232321324), we get a palindrome (4463553644).

The spelling of 4231232320 in words is "four billion, two hundred thirty-one million, two hundred thirty-two thousand, three hundred twenty".