213133223 has 2 divisors, whose sum is σ = 213133224. Its totient is φ = 213133222.

The previous prime is 213133213. The next prime is 213133237. The reversal of 213133223 is 322331312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213133223 - 2⁶ = 213133159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213133195 and 213133204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213133213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106566611 + 106566612.

It is an arithmetic number, because the mean of its divisors is an integer number (106566612).

Almost surely, 2^213133223 is an apocalyptic number.

213133223 is a deficient number, since it is larger than the sum of its proper divisors (1).

213133223 is an equidigital number, since it uses as much as digits as its factorization.

213133223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 20.

The square root of 213133223 is about 14599.0829506514. The cubic root of 213133223 is about 597.3337462200. Note that the first 3 decimals are identical.

Adding to 213133223 its reverse (322331312), we get a palindrome (535464535).

The spelling of 213133223 in words is "two hundred thirteen million, one hundred thirty-three thousand, two hundred twenty-three".