230305331 has 4 divisors (see below), whose sum is σ = 233742792. Its totient is φ = 226867872.

The previous prime is 230305223. The next prime is 230305333. The reversal of 230305331 is 133503032.

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

It is a cyclic number.

It is not a de Polignac number, because 230305331 - 2¹⁰ = 230304307 is a prime.

It is a super-2 number, since 2×230305331² = 106081090974039122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230305333) 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, 1718630 + ... + 1718763.

It is an arithmetic number, because the mean of its divisors is an integer number (58435698).

Almost surely, 2^230305331 is an apocalyptic number.

230305331 is a deficient number, since it is larger than the sum of its proper divisors (3437461).

230305331 is an equidigital number, since it uses as much as digits as its factorization.

230305331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3437460.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 230305331 is about 15175.8140144112. The cubic root of 230305331 is about 612.9635694264.

Adding to 230305331 its reverse (133503032), we get a palindrome (363808363).

The spelling of 230305331 in words is "two hundred thirty million, three hundred five thousand, three hundred thirty-one".