213441317 has 2 divisors, whose sum is σ = 213441318. Its totient is φ = 213441316.

The previous prime is 213441301. The next prime is 213441323. The reversal of 213441317 is 713144312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142898116 + 70543201 = 11954^2 + 8399^2 .

It is a cyclic number.

It is not a de Polignac number, because 213441317 - 2⁴ = 213441301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213441337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106720658 + 106720659.

It is an arithmetic number, because the mean of its divisors is an integer number (106720659).

Almost surely, 2^213441317 is an apocalyptic number.

It is an amenable number.

213441317 is a deficient number, since it is larger than the sum of its proper divisors (1).

213441317 is an equidigital number, since it uses as much as digits as its factorization.

213441317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 26.

The square root of 213441317 is about 14609.6309672763. The cubic root of 213441317 is about 597.6214322265.

Adding to 213441317 its reverse (713144312), we get a palindrome (926585629).

The spelling of 213441317 in words is "two hundred thirteen million, four hundred forty-one thousand, three hundred seventeen".