1021000302089 has 2 divisors, whose sum is σ = 1021000302090. Its totient is φ = 1021000302088.

The previous prime is 1021000302061. The next prime is 1021000302121. The reversal of 1021000302089 is 9802030001201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 601183129600 + 419817172489 = 775360^2 + 647933^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021000302089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021000302989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510500151044 + 510500151045.

It is an arithmetic number, because the mean of its divisors is an integer number (510500151045).

Almost surely, 2^{1021000302089} is an apocalyptic number.

It is an amenable number.

1021000302089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021000302089 is an equidigital number, since it uses as much as digits as its factorization.

1021000302089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 1021000302089 in words is "one trillion, twenty-one billion, three hundred two thousand, eighty-nine".