211313030171 has 2 divisors, whose sum is σ = 211313030172. Its totient is φ = 211313030170.

The previous prime is 211313030107. The next prime is 211313030213. The reversal of 211313030171 is 171030313112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211313030171 - 2⁶ = 211313030107 is a prime.

It is not a weakly prime, because it can be changed into another prime (211313030671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105656515085 + 105656515086.

It is an arithmetic number, because the mean of its divisors is an integer number (105656515086).

Almost surely, 2^211313030171 is an apocalyptic number.

211313030171 is a deficient number, since it is larger than the sum of its proper divisors (1).

211313030171 is an equidigital number, since it uses as much as digits as its factorization.

211313030171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 23.

Adding to 211313030171 its reverse (171030313112), we get a palindrome (382343343283).

The spelling of 211313030171 in words is "two hundred eleven billion, three hundred thirteen million, thirty thousand, one hundred seventy-one".