1043073530021 has 2 divisors, whose sum is σ = 1043073530022. Its totient is φ = 1043073530020.

The previous prime is 1043073529933. The next prime is 1043073530027. The reversal of 1043073530021 is 1200353703401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1040071585921 + 3001944100 = 1019839^2 + 54790^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043073530021 - 2³⁰ = 1041999788197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1043073530027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521536765010 + 521536765011.

It is an arithmetic number, because the mean of its divisors is an integer number (521536765011).

Almost surely, 2^{1043073530021} is an apocalyptic number.

It is an amenable number.

1043073530021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043073530021 is an equidigital number, since it uses as much as digits as its factorization.

1043073530021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 29.

The spelling of 1043073530021 in words is "one trillion, forty-three billion, seventy-three million, five hundred thirty thousand, twenty-one".