213210271 has 2 divisors, whose sum is σ = 213210272. Its totient is φ = 213210270.

The previous prime is 213210259. The next prime is 213210287. The reversal of 213210271 is 172012312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213210271 - 2¹¹ = 213208223 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213210241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106605135 + 106605136.

It is an arithmetic number, because the mean of its divisors is an integer number (106605136).

Almost surely, 2^213210271 is an apocalyptic number.

213210271 is a deficient number, since it is larger than the sum of its proper divisors (1).

213210271 is an equidigital number, since it uses as much as digits as its factorization.

213210271 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 19.

The square root of 213210271 is about 14601.7215080962. The cubic root of 213210271 is about 597.4057165821.

Adding to 213210271 its reverse (172012312), we get a palindrome (385222583).

It can be divided in two parts, 2132 and 10271, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 213210271 in words is "two hundred thirteen million, two hundred ten thousand, two hundred seventy-one".