212020110317 has 2 divisors, whose sum is σ = 212020110318. Its totient is φ = 212020110316.

The previous prime is 212020110271. The next prime is 212020110371. The reversal of 212020110317 is 713011020212.

Together with next prime (212020110371) 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., 172518945316 + 39501165001 = 415354^2 + 198749^2 .

It is a cyclic number.

It is not a de Polignac number, because 212020110317 - 2¹⁰ = 212020109293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212020110377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010055158 + 106010055159.

It is an arithmetic number, because the mean of its divisors is an integer number (106010055159).

Almost surely, 2^212020110317 is an apocalyptic number.

It is an amenable number.

212020110317 is a deficient number, since it is larger than the sum of its proper divisors (1).

212020110317 is an equidigital number, since it uses as much as digits as its factorization.

212020110317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 212020110317 its reverse (713011020212), we get a palindrome (925031130529).

The spelling of 212020110317 in words is "two hundred twelve billion, twenty million, one hundred ten thousand, three hundred seventeen".