1073056321 has 2 divisors, whose sum is σ = 1073056322. Its totient is φ = 1073056320.

The previous prime is 1073056301. The next prime is 1073056339. The reversal of 1073056321 is 1236503701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 699020721 + 374035600 = 26439^2 + 19340^2 .

It is a cyclic number.

It is not a de Polignac number, because 1073056321 - 2¹¹ = 1073054273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1073056321.

It is not a weakly prime, because it can be changed into another prime (1073056301) 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, 536528160 + 536528161.

It is an arithmetic number, because the mean of its divisors is an integer number (536528161).

Almost surely, 2^1073056321 is an apocalyptic number.

It is an amenable number.

1073056321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073056321 is an equidigital number, since it uses as much as digits as its factorization.

1073056321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 1073056321 is about 32757.5383843170. The cubic root of 1073056321 is about 1023.7820380744.

The spelling of 1073056321 in words is "one billion, seventy-three million, fifty-six thousand, three hundred twenty-one".