1001330019973 has 2 divisors, whose sum is σ = 1001330019974. Its totient is φ = 1001330019972.

The previous prime is 1001330019961. The next prime is 1001330019979. The reversal of 1001330019973 is 3799100331001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 969009890689 + 32320129284 = 984383^2 + 179778^2 .

It is an emirp because it is prime and its reverse (3799100331001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1001330019973 - 2⁹ = 1001330019461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001330019979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500665009986 + 500665009987.

It is an arithmetic number, because the mean of its divisors is an integer number (500665009987).

Almost surely, 2^{1001330019973} is an apocalyptic number.

It is an amenable number.

1001330019973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001330019973 is an equidigital number, since it uses as much as digits as its factorization.

1001330019973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15309, while the sum is 37.

The spelling of 1001330019973 in words is "one trillion, one billion, three hundred thirty million, nineteen thousand, nine hundred seventy-three".