1001002015009 has 2 divisors, whose sum is σ = 1001002015010. Its totient is φ = 1001002015008.

The previous prime is 1001002014979. The next prime is 1001002015019. The reversal of 1001002015009 is 9005102001001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 900132255009 + 100869760000 = 948753^2 + 317600^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001002015009 - 2⁵ = 1001002014977 is a prime.

It is a super-2 number, since 2×1001002015009² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1001002015019) 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, 500501007504 + 500501007505.

It is an arithmetic number, because the mean of its divisors is an integer number (500501007505).

Almost surely, 2^{1001002015009} is an apocalyptic number.

It is an amenable number.

1001002015009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001002015009 is an equidigital number, since it uses as much as digits as its factorization.

1001002015009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 19.

The spelling of 1001002015009 in words is "one trillion, one billion, two million, fifteen thousand, nine".