1005000010099 has 4 divisors (see below), whose sum is σ = 1048695662736. Its totient is φ = 961304357464.

The previous prime is 1005000010081. The next prime is 1005000010109. The reversal of 1005000010099 is 9900100005001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005000010099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1005000010199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21847826284 + ... + 21847826329.

It is an arithmetic number, because the mean of its divisors is an integer number (262173915684).

Almost surely, 2^{1005000010099} is an apocalyptic number.

1005000010099 is a deficient number, since it is larger than the sum of its proper divisors (43695652637).

1005000010099 is an equidigital number, since it uses as much as digits as its factorization.

1005000010099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43695652636.

The product of its (nonzero) digits is 405, while the sum is 25.

The spelling of 1005000010099 in words is "one trillion, five billion, ten thousand, ninety-nine".