20120110011 has 12 divisors (see below), whose sum is σ = 30771933192. Its totient is φ = 12624382656.

The previous prime is 20120109973. The next prime is 20120110033. The reversal of 20120110011 is 11001102102.

It is a happy number.

It is not a de Polignac number, because 20120110011 - 2⁷ = 20120109883 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 = 20120109975 and 20120110002.

It is not an unprimeable number, because it can be changed into a prime (20120110081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65751841 + ... + 65752146.

It is an arithmetic number, because the mean of its divisors is an integer number (2564327766).

Almost surely, 2^20120110011 is an apocalyptic number.

20120110011 is a deficient number, since it is larger than the sum of its proper divisors (10651823181).

20120110011 is a wasteful number, since it uses less digits than its factorization.

20120110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131504010 (or 131504007 counting only the distinct ones).

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

Adding to 20120110011 its reverse (11001102102), we get a palindrome (31121212113).

The spelling of 20120110011 in words is "twenty billion, one hundred twenty million, one hundred ten thousand, eleven".