212310017 has 2 divisors, whose sum is σ = 212310018. Its totient is φ = 212310016.

The previous prime is 212309947. The next prime is 212310023. The reversal of 212310017 is 710013212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212022721 + 287296 = 14561^2 + 536^2 .

It is a cyclic number.

It is not a de Polignac number, because 212310017 - 2²⁴ = 195532801 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 212309977 and 212310004.

It is not a weakly prime, because it can be changed into another prime (212310037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106155008 + 106155009.

It is an arithmetic number, because the mean of its divisors is an integer number (106155009).

Almost surely, 2^212310017 is an apocalyptic number.

It is an amenable number.

212310017 is a deficient number, since it is larger than the sum of its proper divisors (1).

212310017 is an equidigital number, since it uses as much as digits as its factorization.

212310017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 212310017 is about 14570.8619168531. The cubic root of 212310017 is about 596.5637064557.

Adding to 212310017 its reverse (710013212), we get a palindrome (922323229).

The spelling of 212310017 in words is "two hundred twelve million, three hundred ten thousand, seventeen".