12011110011 has 12 divisors (see below), whose sum is σ = 18369933192. Its totient is φ = 7536382656.

The previous prime is 12011110009. The next prime is 12011110019. The reversal of 12011110011 is 11001111021.

It is not a de Polignac number, because 12011110011 - 2¹ = 12011110009 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 = 12011109975 and 12011110002.

It is not an unprimeable number, because it can be changed into a prime (12011110019) 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, 39251841 + ... + 39252146.

It is an arithmetic number, because the mean of its divisors is an integer number (1530827766).

Almost surely, 2^12011110011 is an apocalyptic number.

12011110011 is a deficient number, since it is larger than the sum of its proper divisors (6358823181).

12011110011 is a wasteful number, since it uses less digits than its factorization.

12011110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78504010 (or 78504007 counting only the distinct ones).

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

Adding to 12011110011 its reverse (11001111021), we get a palindrome (23012221032).

The spelling of 12011110011 in words is "twelve billion, eleven million, one hundred ten thousand, eleven".