20000120110011 has 6 divisors (see below), whose sum is σ = 28889062381140. Its totient is φ = 13333413406668.

The previous prime is 20000120110007. The next prime is 20000120110021. The reversal of 20000120110011 is 11001102100002.

It is a happy number.

It is not a de Polignac number, because 20000120110011 - 2² = 20000120110007 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: 2222235567779 = 20000120110011 / (2 + 0 + 0 + 0 + 0 + 1 + 2 + 0 + 1 + 1 + 0 + 0 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 20000120109975 and 20000120110002.

It is not an unprimeable number, because it can be changed into a prime (20000120110021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1111117783881 + ... + 1111117783898.

It is an arithmetic number, because the mean of its divisors is an integer number (4814843730190).

Almost surely, 2^{20000120110011} is an apocalyptic number.

20000120110011 is a deficient number, since it is larger than the sum of its proper divisors (8888942271129).

20000120110011 is a wasteful number, since it uses less digits than its factorization.

20000120110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222235567785 (or 2222235567782 counting only the distinct ones).

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

Adding to 20000120110011 its reverse (11001102100002), we get a palindrome (31001222210013).

The spelling of 20000120110011 in words is "twenty trillion, one hundred twenty million, one hundred ten thousand, eleven".