201233213 has 2 divisors, whose sum is σ = 201233214. Its totient is φ = 201233212.

The previous prime is 201233203. The next prime is 201233239. The reversal of 201233213 is 312332102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192155044 + 9078169 = 13862^2 + 3013^2 .

It is a cyclic number.

It is not a de Polignac number, because 201233213 - 2²² = 197038909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201233191 and 201233200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201233203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100616606 + 100616607.

It is an arithmetic number, because the mean of its divisors is an integer number (100616607).

Almost surely, 2^201233213 is an apocalyptic number.

It is an amenable number.

201233213 is a deficient number, since it is larger than the sum of its proper divisors (1).

201233213 is an equidigital number, since it uses as much as digits as its factorization.

201233213 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 201233213 is about 14185.6692827656. The cubic root of 201233213 is about 586.0030644732.

Adding to 201233213 its reverse (312332102), we get a palindrome (513565315).

The spelling of 201233213 in words is "two hundred one million, two hundred thirty-three thousand, two hundred thirteen".