11002011111 has 48 divisors (see below), whose sum is σ = 20418904800. Its totient is φ = 5803249536.

The previous prime is 11002011037. The next prime is 11002011131. The reversal of 11002011111 is 11111020011.

It is not a de Polignac number, because 11002011111 - 2⁹ = 11002010599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11002011093 and 11002011102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002011131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 302646 + ... + 337043.

It is an arithmetic number, because the mean of its divisors is an integer number (425393850).

Almost surely, 2^11002011111 is an apocalyptic number.

11002011111 is a deficient number, since it is larger than the sum of its proper divisors (9416893689).

11002011111 is a wasteful number, since it uses less digits than its factorization.

11002011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639725 (or 639712 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 11002011111 its reverse (11111020011), we get a palindrome (22113031122).

The spelling of 11002011111 in words is "eleven billion, two million, eleven thousand, one hundred eleven".