1000991001002 has 32 divisors (see below), whose sum is σ = 1511053315200. Its totient is φ = 497319558400.

The previous prime is 1000991000983. The next prime is 1000991001029. The reversal of 1000991001002 is 2001001990001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311930774 + ... + 311933982.

It is an arithmetic number, because the mean of its divisors is an integer number (47220416100).

Almost surely, 2^{1000991001002} is an apocalyptic number.

1000991001002 is a deficient number, since it is larger than the sum of its proper divisors (510062314198).

1000991001002 is a wasteful number, since it uses less digits than its factorization.

1000991001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4942.

The product of its (nonzero) digits is 162, while the sum is 23.

Adding to 1000991001002 its reverse (2001001990001), we get a palindrome (3001992991003).

The spelling of 1000991001002 in words is "one trillion, nine hundred ninety-one million, one thousand, two".