11143420011 has 12 divisors (see below), whose sum is σ = 16102226400. Its totient is φ = 7426096560.

The previous prime is 11143420009. The next prime is 11143420031. The reversal of 11143420011 is 11002434111.

It is not a de Polignac number, because 11143420011 - 2¹ = 11143420009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11143420031) 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, 212611 + ... + 259788.

It is an arithmetic number, because the mean of its divisors is an integer number (1341852200).

Almost surely, 2^11143420011 is an apocalyptic number.

11143420011 is a deficient number, since it is larger than the sum of its proper divisors (4958806389).

11143420011 is a wasteful number, since it uses less digits than its factorization.

11143420011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475026 (or 475023 counting only the distinct ones).

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

Adding to 11143420011 its reverse (11002434111), we get a palindrome (22145854122).

The spelling of 11143420011 in words is "eleven billion, one hundred forty-three million, four hundred twenty thousand, eleven".