4234313221 has 2 divisors, whose sum is σ = 4234313222. Its totient is φ = 4234313220.

The previous prime is 4234313207. The next prime is 4234313257. The reversal of 4234313221 is 1223134324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3873693121 + 360620100 = 62239^2 + 18990^2 .

It is a cyclic number.

It is not a de Polignac number, because 4234313221 - 2²⁵ = 4200758789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4234313261) 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, 2117156610 + 2117156611.

It is an arithmetic number, because the mean of its divisors is an integer number (2117156611).

Almost surely, 2^4234313221 is an apocalyptic number.

It is an amenable number.

4234313221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4234313221 is an equidigital number, since it uses as much as digits as its factorization.

4234313221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 25.

The square root of 4234313221 is about 65071.6007256622. The cubic root of 4234313221 is about 1617.8105387793.

Adding to 4234313221 its reverse (1223134324), we get a palindrome (5457447545).

The spelling of 4234313221 in words is "four billion, two hundred thirty-four million, three hundred thirteen thousand, two hundred twenty-one".