230306231 has 4 divisors (see below), whose sum is σ = 230337432. Its totient is φ = 230275032.

The previous prime is 230306213. The next prime is 230306243. The reversal of 230306231 is 132603032.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230306231 is a prime.

It is a super-2 number, since 2×230306231² = 106081920074850722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230306261) 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 3 ways as a sum of consecutive naturals, for example, 2381 + ... + 21593.

It is an arithmetic number, because the mean of its divisors is an integer number (57584358).

Almost surely, 2^230306231 is an apocalyptic number.

230306231 is a deficient number, since it is larger than the sum of its proper divisors (31201).

230306231 is a wasteful number, since it uses less digits than its factorization.

230306231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31200.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 230306231 is about 15175.8436668279. The cubic root of 230306231 is about 612.9643678831.

Adding to 230306231 its reverse (132603032), we get a palindrome (362909263).

The spelling of 230306231 in words is "two hundred thirty million, three hundred six thousand, two hundred thirty-one".