211350317 has 2 divisors, whose sum is σ = 211350318. Its totient is φ = 211350316.

The previous prime is 211350301. The next prime is 211350371. The reversal of 211350317 is 713053112.

Together with next prime (211350371) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156900676 + 54449641 = 12526^2 + 7379^2 .

It is a cyclic number.

It is not a de Polignac number, because 211350317 - 2⁴ = 211350301 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 211350292 and 211350301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211350017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105675158 + 105675159.

It is an arithmetic number, because the mean of its divisors is an integer number (105675159).

Almost surely, 2^211350317 is an apocalyptic number.

It is an amenable number.

211350317 is a deficient number, since it is larger than the sum of its proper divisors (1).

211350317 is an equidigital number, since it uses as much as digits as its factorization.

211350317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 211350317 is about 14537.8924538600. The cubic root of 211350317 is about 595.6634709998.

The spelling of 211350317 in words is "two hundred eleven million, three hundred fifty thousand, three hundred seventeen".