213230671 has 2 divisors, whose sum is σ = 213230672. Its totient is φ = 213230670.

The previous prime is 213230663. The next prime is 213230683. The reversal of 213230671 is 176032312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213230671 - 2³ = 213230663 is a prime.

It is a super-2 number, since 2×213230671² = 90934638110220482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213230621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106615335 + 106615336.

It is an arithmetic number, because the mean of its divisors is an integer number (106615336).

Almost surely, 2^213230671 is an apocalyptic number.

213230671 is a deficient number, since it is larger than the sum of its proper divisors (1).

213230671 is an equidigital number, since it uses as much as digits as its factorization.

213230671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 213230671 is about 14602.4200391579. The cubic root of 213230671 is about 597.4247692727.

Adding to 213230671 its reverse (176032312), we get a palindrome (389262983).

The spelling of 213230671 in words is "two hundred thirteen million, two hundred thirty thousand, six hundred seventy-one".