1021104449 has 2 divisors, whose sum is σ = 1021104450. Its totient is φ = 1021104448.

The previous prime is 1021104401. The next prime is 1021104451. The reversal of 1021104449 is 9444011201.

1021104449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 729378049 + 291726400 = 27007^2 + 17080^2 .

It is an emirp because it is prime and its reverse (9444011201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021104449 is a prime.

It is a Sophie Germain prime.

Together with 1021104451, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1021104349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510552224 + 510552225.

It is an arithmetic number, because the mean of its divisors is an integer number (510552225).

Almost surely, 2^1021104449 is an apocalyptic number.

It is an amenable number.

1021104449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021104449 is an equidigital number, since it uses as much as digits as its factorization.

1021104449 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 26.

The square root of 1021104449 is about 31954.7249870813. The cubic root of 1021104449 is about 1006.9858998922.

The spelling of 1021104449 in words is "one billion, twenty-one million, one hundred four thousand, four hundred forty-nine".