3104739491221 has 2 divisors, whose sum is σ = 3104739491222. Its totient is φ = 3104739491220.

The previous prime is 3104739491207. The next prime is 3104739491239. The reversal of 3104739491221 is 1221949374013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1913203510596 + 1191535980625 = 1383186^2 + 1091575^2 .

It is a cyclic number.

It is not a de Polignac number, because 3104739491221 - 2⁷ = 3104739491093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3104739491201) 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, 1552369745610 + 1552369745611.

It is an arithmetic number, because the mean of its divisors is an integer number (1552369745611).

Almost surely, 2^{3104739491221} is an apocalyptic number.

It is an amenable number.

3104739491221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3104739491221 is an equidigital number, since it uses as much as digits as its factorization.

3104739491221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 3104739491221 in words is "three trillion, one hundred four billion, seven hundred thirty-nine million, four hundred ninety-one thousand, two hundred twenty-one".