3104243221 has 2 divisors, whose sum is σ = 3104243222. Its totient is φ = 3104243220.

The previous prime is 3104243159. The next prime is 3104243293. The reversal of 3104243221 is 1223424013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2454707025 + 649536196 = 49545^2 + 25486^2 .

It is a cyclic number.

It is not a de Polignac number, because 3104243221 - 2¹⁷ = 3104112149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3104243192 and 3104243201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3104243521) 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, 1552121610 + 1552121611.

It is an arithmetic number, because the mean of its divisors is an integer number (1552121611).

Almost surely, 2^3104243221 is an apocalyptic number.

It is an amenable number.

3104243221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3104243221 is an equidigital number, since it uses as much as digits as its factorization.

3104243221 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 3104243221 is about 55715.7358472452. The cubic root of 3104243221 is about 1458.7647055754.

Adding to 3104243221 its reverse (1223424013), we get a palindrome (4327667234).

The spelling of 3104243221 in words is "three billion, one hundred four million, two hundred forty-three thousand, two hundred twenty-one".