211313 has 2 divisors, whose sum is σ = 211314.
Its totient is φ = 211312.
The previous prime is 211297. The next prime is 211319. The reversal of 211313 is 313112.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 200704 + 10609 = 448^2 + 103^2
It is a cyclic number.
It is not a de Polignac number, because 211313 - 24 = 211297 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 = 211294 and 211303.
It is not a weakly prime, because it can be changed into another prime (211319) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105656 + 105657.
It is an arithmetic number, because the mean of its divisors is an integer number (105657).
2211313 is an apocalyptic number.
It is an amenable number.
211313 is a deficient number, since it is larger than the sum of its proper divisors (1).
211313 is an equidigital number, since it uses as much as digits as its factorization.
211313 is an evil number, because the sum of its binary digits is even.
The product of its digits is 18, while the sum is 11.
The square root of 211313 is about 459.6879376273.
The cubic root of 211313 is about 59.5628411227.
Adding to 211313 its reverse (313112), we get a palindrome (524425).
The spelling of 211313 in words is "two hundred eleven thousand, three hundred thirteen".