230239811 has 2 divisors, whose sum is σ = 230239812. Its totient is φ = 230239810.

The previous prime is 230239781. The next prime is 230239829. The reversal of 230239811 is 118932032.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230239811 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (230239861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115119905 + 115119906.

It is an arithmetic number, because the mean of its divisors is an integer number (115119906).

Almost surely, 2^230239811 is an apocalyptic number.

230239811 is a deficient number, since it is larger than the sum of its proper divisors (1).

230239811 is an equidigital number, since it uses as much as digits as its factorization.

230239811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 230239811 is about 15173.6551628143. The cubic root of 230239811 is about 612.9054361908.

The spelling of 230239811 in words is "two hundred thirty million, two hundred thirty-nine thousand, eight hundred eleven".