213171103 has 2 divisors, whose sum is σ = 213171104. Its totient is φ = 213171102.

The previous prime is 213171073. The next prime is 213171113. The reversal of 213171103 is 301171312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213171103 - 2¹⁷ = 213040031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213171113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106585551 + 106585552.

It is an arithmetic number, because the mean of its divisors is an integer number (106585552).

Almost surely, 2^213171103 is an apocalyptic number.

213171103 is a deficient number, since it is larger than the sum of its proper divisors (1).

213171103 is an equidigital number, since it uses as much as digits as its factorization.

213171103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 213171103 is about 14600.3802347747. The cubic root of 213171103 is about 597.3691320092.

The spelling of 213171103 in words is "two hundred thirteen million, one hundred seventy-one thousand, one hundred three".