1002000021011 has 8 divisors (see below), whose sum is σ = 1093132531200. Its totient is φ = 910874444040.

The previous prime is 1002000021007. The next prime is 1002000021017. The reversal of 1002000021011 is 1101200002001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1002000021011 - 2² = 1002000021007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1002000021011.

It is not an unprimeable number, because it can be changed into a prime (1002000021017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1428791 + ... + 2011328.

It is an arithmetic number, because the mean of its divisors is an integer number (136641566400).

Almost surely, 2^{1002000021011} is an apocalyptic number.

1002000021011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1002000021011 is a deficient number, since it is larger than the sum of its proper divisors (91132510189).

1002000021011 is a wasteful number, since it uses less digits than its factorization.

1002000021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3466609.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1002000021011 its reverse (1101200002001), we get a palindrome (2103200023012).

The spelling of 1002000021011 in words is "one trillion, two billion, twenty-one thousand, eleven".