233213311 has 2 divisors, whose sum is σ = 233213312. Its totient is φ = 233213310.

The previous prime is 233213297. The next prime is 233213347. The reversal of 233213311 is 113312332.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233213311 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233213411) 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, 116606655 + 116606656.

It is an arithmetic number, because the mean of its divisors is an integer number (116606656).

Almost surely, 2^233213311 is an apocalyptic number.

233213311 is a deficient number, since it is larger than the sum of its proper divisors (1).

233213311 is an equidigital number, since it uses as much as digits as its factorization.

233213311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 19.

The square root of 233213311 is about 15271.3231581288. The cubic root of 233213311 is about 615.5326744176.

Adding to 233213311 its reverse (113312332), we get a palindrome (346525643).

The spelling of 233213311 in words is "two hundred thirty-three million, two hundred thirteen thousand, three hundred eleven".