213041317 has 2 divisors, whose sum is σ = 213041318. Its totient is φ = 213041316.

The previous prime is 213041303. The next prime is 213041321. The reversal of 213041317 is 713140312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181333156 + 31708161 = 13466^2 + 5631^2 .

It is a cyclic number.

It is not a de Polignac number, because 213041317 - 2¹¹ = 213039269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213041327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106520658 + 106520659.

It is an arithmetic number, because the mean of its divisors is an integer number (106520659).

Almost surely, 2^213041317 is an apocalyptic number.

It is an amenable number.

213041317 is a deficient number, since it is larger than the sum of its proper divisors (1).

213041317 is an equidigital number, since it uses as much as digits as its factorization.

213041317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 213041317 is about 14595.9349477860. The cubic root of 213041317 is about 597.2478743454.

Adding to 213041317 its reverse (713140312), we get a palindrome (926181629).

The spelling of 213041317 in words is "two hundred thirteen million, forty-one thousand, three hundred seventeen".