230444213 has 2 divisors, whose sum is σ = 230444214. Its totient is φ = 230444212.

The previous prime is 230444183. The next prime is 230444233. The reversal of 230444213 is 312444032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 214388164 + 16056049 = 14642^2 + 4007^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230444213 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230444233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115222106 + 115222107.

It is an arithmetic number, because the mean of its divisors is an integer number (115222107).

Almost surely, 2^230444213 is an apocalyptic number.

It is an amenable number.

230444213 is a deficient number, since it is larger than the sum of its proper divisors (1).

230444213 is an equidigital number, since it uses as much as digits as its factorization.

230444213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 230444213 is about 15180.3890925101. The cubic root of 230444213 is about 613.0867573407.

Adding to 230444213 its reverse (312444032), we get a palindrome (542888245).

The spelling of 230444213 in words is "two hundred thirty million, four hundred forty-four thousand, two hundred thirteen".