230311 has 2 divisors, whose sum is σ = 230312. Its totient is φ = 230310.

The previous prime is 230309. The next prime is 230327. The reversal of 230311 is 113032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 230311 - 2¹ = 230309 is a prime.

Together with 230309, it forms a pair of twin primes.

It is a Chen prime.

230311 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115155 + 115156.

It is an arithmetic number, because the mean of its divisors is an integer number (115156).

2²³⁰³¹¹ is an apocalyptic number.

230311 is a deficient number, since it is larger than the sum of its proper divisors (1).

230311 is an equidigital number, since it uses as much as digits as its factorization.

230311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 230311 is about 479.9072827120. The cubic root of 230311 is about 61.2968598782.

Adding to 230311 its reverse (113032), we get a palindrome (343343).

It can be divided in two parts, 23031 and 1, that added together give a palindrome (23032).

The spelling of 230311 in words is "two hundred thirty thousand, three hundred eleven".