213085668307 has 2 divisors, whose sum is σ = 213085668308. Its totient is φ = 213085668306.

The previous prime is 213085668283. The next prime is 213085668311. The reversal of 213085668307 is 703866580312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213085668307 - 2³¹ = 210938184659 is a prime.

It is not a weakly prime, because it can be changed into another prime (213085668707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106542834153 + 106542834154.

It is an arithmetic number, because the mean of its divisors is an integer number (106542834154).

Almost surely, 2^213085668307 is an apocalyptic number.

213085668307 is a deficient number, since it is larger than the sum of its proper divisors (1).

213085668307 is an equidigital number, since it uses as much as digits as its factorization.

213085668307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 213085668307 in words is "two hundred thirteen billion, eighty-five million, six hundred sixty-eight thousand, three hundred seven".