211134317 has 2 divisors, whose sum is σ = 211134318. Its totient is φ = 211134316.

The previous prime is 211134311. The next prime is 211134337. The reversal of 211134317 is 713431112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205234276 + 5900041 = 14326^2 + 2429^2 .

It is a cyclic number.

It is not a de Polignac number, because 211134317 - 2¹⁸ = 210872173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211134292 and 211134301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211134311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105567158 + 105567159.

It is an arithmetic number, because the mean of its divisors is an integer number (105567159).

Almost surely, 2^211134317 is an apocalyptic number.

It is an amenable number.

211134317 is a deficient number, since it is larger than the sum of its proper divisors (1).

211134317 is an equidigital number, since it uses as much as digits as its factorization.

211134317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 23.

The square root of 211134317 is about 14530.4616925960. The cubic root of 211134317 is about 595.4604791649.

Adding to 211134317 its reverse (713431112), we get a palindrome (924565429).

The spelling of 211134317 in words is "two hundred eleven million, one hundred thirty-four thousand, three hundred seventeen".