212011302317 has 2 divisors, whose sum is σ = 212011302318. Its totient is φ = 212011302316.

The previous prime is 212011302299. The next prime is 212011302323. The reversal of 212011302317 is 713203110212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203636490121 + 8374812196 = 451261^2 + 91514^2 .

It is a cyclic number.

It is not a de Polignac number, because 212011302317 - 2¹⁴ = 212011285933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212011302292 and 212011302301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212011302917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106005651158 + 106005651159.

It is an arithmetic number, because the mean of its divisors is an integer number (106005651159).

Almost surely, 2^212011302317 is an apocalyptic number.

It is an amenable number.

212011302317 is a deficient number, since it is larger than the sum of its proper divisors (1).

212011302317 is an equidigital number, since it uses as much as digits as its factorization.

212011302317 is an evil number, because the sum of its binary digits is even.

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

Adding to 212011302317 its reverse (713203110212), we get a palindrome (925214412529).

The spelling of 212011302317 in words is "two hundred twelve billion, eleven million, three hundred two thousand, three hundred seventeen".