11443120011 has 12 divisors (see below), whose sum is σ = 17247601488. Its totient is φ = 7297061904.

The previous prime is 11443120009. The next prime is 11443120027. The reversal of 11443120011 is 11002134411.

11443120011 is a `hidden beast` number, since 11 + 443 + 1 + 200 + 11 = 666.

It is not a de Polignac number, because 11443120011 - 2¹ = 11443120009 is a prime.

It is a super-2 number, since 2×11443120011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11443120061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27640180 + ... + 27640593.

It is an arithmetic number, because the mean of its divisors is an integer number (1437300124).

Almost surely, 2^11443120011 is an apocalyptic number.

11443120011 is a deficient number, since it is larger than the sum of its proper divisors (5804481477).

11443120011 is a wasteful number, since it uses less digits than its factorization.

11443120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55280802 (or 55280799 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11443120011 its reverse (11002134411), we get a palindrome (22445254422).

The spelling of 11443120011 in words is "eleven billion, four hundred forty-three million, one hundred twenty thousand, eleven".