230430021 has 4 divisors (see below), whose sum is σ = 307240032. Its totient is φ = 153620012.

The previous prime is 230430017. The next prime is 230430041. The reversal of 230430021 is 120034032.

230430021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230430021 - 2² = 230430017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230430041) 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, 38405001 + ... + 38405006.

It is an arithmetic number, because the mean of its divisors is an integer number (76810008).

Almost surely, 2^230430021 is an apocalyptic number.

It is an amenable number.

230430021 is a deficient number, since it is larger than the sum of its proper divisors (76810011).

230430021 is an equidigital number, since it uses as much as digits as its factorization.

230430021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76810010.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 230430021 is about 15179.9216401140. The cubic root of 230430021 is about 613.0741713504.

Adding to 230430021 its reverse (120034032), we get a palindrome (350464053).

The spelling of 230430021 in words is "two hundred thirty million, four hundred thirty thousand, twenty-one".