213210323 has 2 divisors, whose sum is σ = 213210324. Its totient is φ = 213210322.

The previous prime is 213210313. The next prime is 213210337. The reversal of 213210323 is 323012312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213210323 - 2⁶ = 213210259 is a prime.

It is not a weakly prime, because it can be changed into another prime (213210313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106605161 + 106605162.

It is an arithmetic number, because the mean of its divisors is an integer number (106605162).

Almost surely, 2^213210323 is an apocalyptic number.

213210323 is a deficient number, since it is larger than the sum of its proper divisors (1).

213210323 is an equidigital number, since it uses as much as digits as its factorization.

213210323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 213210323 is about 14601.7232887081. The cubic root of 213210323 is about 597.4057651494.

Adding to 213210323 its reverse (323012312), we get a palindrome (536222635).

The spelling of 213210323 in words is "two hundred thirteen million, two hundred ten thousand, three hundred twenty-three".