233203213 has 2 divisors, whose sum is σ = 233203214. Its totient is φ = 233203212.

The previous prime is 233203189. The next prime is 233203231. The reversal of 233203213 is 312302332.

It is a happy number.

Together with next prime (233203231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210192004 + 23011209 = 14498^2 + 4797^2 .

It is a cyclic number.

It is not a de Polignac number, because 233203213 - 2²¹ = 231106061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233203513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116601606 + 116601607.

It is an arithmetic number, because the mean of its divisors is an integer number (116601607).

Almost surely, 2^233203213 is an apocalyptic number.

It is an amenable number.

233203213 is a deficient number, since it is larger than the sum of its proper divisors (1).

233203213 is an equidigital number, since it uses as much as digits as its factorization.

233203213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 233203213 is about 15270.9925348682. The cubic root of 233203213 is about 615.5237902211.

Adding to 233203213 its reverse (312302332), we get a palindrome (545505545).

The spelling of 233203213 in words is "two hundred thirty-three million, two hundred three thousand, two hundred thirteen".