11002120011 has 6 divisors (see below), whose sum is σ = 15891951140. Its totient is φ = 7334746668.

The previous prime is 11002119991. The next prime is 11002120033.

It is a happy number.

11002120011 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 11002120011 - 2¹³ = 11002111819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1222457779 = 11002120011 / (1 + 1 + 0 + 0 + 2 + 1 + 2 + 0 + 0 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11002119975 and 11002120002.

It is not an unprimeable number, because it can be changed into a prime (11002120111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611228881 + ... + 611228898.

Almost surely, 2^11002120011 is an apocalyptic number.

11002120011 is a deficient number, since it is larger than the sum of its proper divisors (4889831129).

11002120011 is a wasteful number, since it uses less digits than its factorization.

11002120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222457785 (or 1222457782 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The spelling of 11002120011 in words is "eleven billion, two million, one hundred twenty thousand, eleven".