11002001021111 has 4 divisors (see below), whose sum is σ = 11034647908752. Its totient is φ = 10969354133472.

The previous prime is 11002001021071. The next prime is 11002001021147. The reversal of 11002001021111 is 11112010020011.

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

It is a cyclic number.

It is not a de Polignac number, because 11002001021111 - 2⁶ = 11002001021047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11002001021092 and 11002001021101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002001027111) 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, 16323443315 + ... + 16323443988.

It is an arithmetic number, because the mean of its divisors is an integer number (2758661977188).

Almost surely, 2^{11002001021111} is an apocalyptic number.

11002001021111 is a deficient number, since it is larger than the sum of its proper divisors (32646887641).

11002001021111 is an equidigital number, since it uses as much as digits as its factorization.

11002001021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32646887640.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11002001021111 its reverse (11112010020011), we get a palindrome (22114011041122).

The spelling of 11002001021111 in words is "eleven trillion, two billion, one million, twenty-one thousand, one hundred eleven".