213102232171 has 2 divisors, whose sum is σ = 213102232172. Its totient is φ = 213102232170.

The previous prime is 213102232169. The next prime is 213102232241. The reversal of 213102232171 is 171232201312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213102232171 - 2¹ = 213102232169 is a prime.

It is a super-2 number, since 2×213102232171² (a number of 23 digits) contains 22 as substring.

Together with 213102232169, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (213102232271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106551116085 + 106551116086.

It is an arithmetic number, because the mean of its divisors is an integer number (106551116086).

Almost surely, 2^213102232171 is an apocalyptic number.

213102232171 is a deficient number, since it is larger than the sum of its proper divisors (1).

213102232171 is an equidigital number, since it uses as much as digits as its factorization.

213102232171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 213102232171 its reverse (171232201312), we get a palindrome (384334433483).

The spelling of 213102232171 in words is "two hundred thirteen billion, one hundred two million, two hundred thirty-two thousand, one hundred seventy-one".