234221311 has 2 divisors, whose sum is σ = 234221312. Its totient is φ = 234221310.

The previous prime is 234221297. The next prime is 234221329. The reversal of 234221311 is 113122432.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 234221311 - 2¹⁷ = 234090239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234221111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117110655 + 117110656.

It is an arithmetic number, because the mean of its divisors is an integer number (117110656).

Almost surely, 2^234221311 is an apocalyptic number.

234221311 is a deficient number, since it is larger than the sum of its proper divisors (1).

234221311 is an equidigital number, since it uses as much as digits as its factorization.

234221311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 19.

The square root of 234221311 is about 15304.2906075388. The cubic root of 234221311 is about 616.4182230107.

Adding to 234221311 its reverse (113122432), we get a palindrome (347343743).

It can be divided in two parts, 2342 and 21311, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 234221311 in words is "two hundred thirty-four million, two hundred twenty-one thousand, three hundred eleven".