233420311 has 2 divisors, whose sum is σ = 233420312. Its totient is φ = 233420310.

The previous prime is 233420303. The next prime is 233420329. The reversal of 233420311 is 113024332.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 233420311 - 2³ = 233420303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233420711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116710155 + 116710156.

It is an arithmetic number, because the mean of its divisors is an integer number (116710156).

Almost surely, 2^233420311 is an apocalyptic number.

233420311 is a deficient number, since it is larger than the sum of its proper divisors (1).

233420311 is an equidigital number, since it uses as much as digits as its factorization.

233420311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 233420311 is about 15278.0990636924. The cubic root of 233420311 is about 615.7147360443.

Adding to 233420311 its reverse (113024332), we get a palindrome (346444643).

The spelling of 233420311 in words is "two hundred thirty-three million, four hundred twenty thousand, three hundred eleven".