211103317 has 2 divisors, whose sum is σ = 211103318. Its totient is φ = 211103316.

The previous prime is 211103311. The next prime is 211103327. The reversal of 211103317 is 713301112.

211103317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175271121 + 35832196 = 13239^2 + 5986^2 .

It is a cyclic number.

It is not a de Polignac number, because 211103317 - 2¹⁹ = 210579029 is a prime.

It is a super-2 number, since 2×211103317² = 89129220896804978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211103294 and 211103303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211103311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105551658 + 105551659.

It is an arithmetic number, because the mean of its divisors is an integer number (105551659).

Almost surely, 2^211103317 is an apocalyptic number.

It is an amenable number.

211103317 is a deficient number, since it is larger than the sum of its proper divisors (1).

211103317 is an equidigital number, since it uses as much as digits as its factorization.

211103317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 211103317 is about 14529.3949289019. The cubic root of 211103317 is about 595.4313347185.

Adding to 211103317 its reverse (713301112), we get a palindrome (924404429).

The spelling of 211103317 in words is "two hundred eleven million, one hundred three thousand, three hundred seventeen".