4243230321 has 8 divisors (see below), whose sum is σ = 6171971424. Its totient is φ = 2571654720.

The previous prime is 4243230287. The next prime is 4243230349. The reversal of 4243230321 is 1230323424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4243230321 - 2¹⁰ = 4243229297 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4243230291 and 4243230300.

It is not an unprimeable number, because it can be changed into a prime (4243230361) 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 7 ways as a sum of consecutive naturals, for example, 64291336 + ... + 64291401.

It is an arithmetic number, because the mean of its divisors is an integer number (771496428).

Almost surely, 2^4243230321 is an apocalyptic number.

It is an amenable number.

4243230321 is a deficient number, since it is larger than the sum of its proper divisors (1928741103).

4243230321 is a wasteful number, since it uses less digits than its factorization.

4243230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128582751.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 4243230321 is about 65140.0822919345. The cubic root of 4243230321 is about 1618.9453991978.

Adding to 4243230321 its reverse (1230323424), we get a palindrome (5473553745).

The spelling of 4243230321 in words is "four billion, two hundred forty-three million, two hundred thirty thousand, three hundred twenty-one".