230221443 has 4 divisors (see below), whose sum is σ = 306961928. Its totient is φ = 153480960.

The previous prime is 230221427. The next prime is 230221477. The reversal of 230221443 is 344122032.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 230221443 - 2⁴ = 230221427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230221483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38370238 + ... + 38370243.

It is an arithmetic number, because the mean of its divisors is an integer number (76740482).

Almost surely, 2^230221443 is an apocalyptic number.

230221443 is a deficient number, since it is larger than the sum of its proper divisors (76740485).

230221443 is an equidigital number, since it uses as much as digits as its factorization.

230221443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76740484.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 230221443 is about 15173.0498911722. The cubic root of 230221443 is about 612.8891370310.

Adding to 230221443 its reverse (344122032), we get a palindrome (574343475).

The spelling of 230221443 in words is "two hundred thirty million, two hundred twenty-one thousand, four hundred forty-three".