4102343221 has 2 divisors, whose sum is σ = 4102343222. Its totient is φ = 4102343220.

The previous prime is 4102343213. The next prime is 4102343237. The reversal of 4102343221 is 1223432014.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4094720100 + 7623121 = 63990^2 + 2761^2 .

It is a cyclic number.

It is not a de Polignac number, because 4102343221 - 2³ = 4102343213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4102343192 and 4102343201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4102343251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2051171610 + 2051171611.

It is an arithmetic number, because the mean of its divisors is an integer number (2051171611).

Almost surely, 2^4102343221 is an apocalyptic number.

It is an amenable number.

4102343221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4102343221 is an equidigital number, since it uses as much as digits as its factorization.

4102343221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 4102343221 is about 64049.5372426687. The cubic root of 4102343221 is about 1600.8255142400.

Adding to 4102343221 its reverse (1223432014), we get a palindrome (5325775235).

The spelling of 4102343221 in words is "four billion, one hundred two million, three hundred forty-three thousand, two hundred twenty-one".