42230213 has 2 divisors, whose sum is σ = 42230214. Its totient is φ = 42230212.

The previous prime is 42230207. The next prime is 42230219. The reversal of 42230213 is 31203224.

It is a balanced prime because it is at equal distance from previous prime (42230207) and next prime (42230219).

It can be written as a sum of positive squares in only one way, i.e., 28376929 + 13853284 = 5327^2 + 3722^2 .

It is a cyclic number.

It is not a de Polignac number, because 42230213 - 2¹⁰ = 42229189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42230191 and 42230200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42230219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21115106 + 21115107.

It is an arithmetic number, because the mean of its divisors is an integer number (21115107).

Almost surely, 2^42230213 is an apocalyptic number.

It is an amenable number.

42230213 is a deficient number, since it is larger than the sum of its proper divisors (1).

42230213 is an equidigital number, since it uses as much as digits as its factorization.

42230213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 42230213 is about 6498.4777448261. The cubic root of 42230213 is about 348.2366080397.

Adding to 42230213 its reverse (31203224), we get a palindrome (73433437).

The spelling of 42230213 in words is "forty-two million, two hundred thirty thousand, two hundred thirteen".