20101120002011 has 4 divisors (see below), whose sum is σ = 20101142496624. Its totient is φ = 20101097507400.

The previous prime is 20101120001993. The next prime is 20101120002013. The reversal of 20101120002011 is 11020002110102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20101120002011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20101120001983 and 20101120002001.

It is not an unprimeable number, because it can be changed into a prime (20101120002013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9848960 + ... + 11713421.

It is an arithmetic number, because the mean of its divisors is an integer number (5025285624156).

Almost surely, 2^{20101120002011} is an apocalyptic number.

20101120002011 is a deficient number, since it is larger than the sum of its proper divisors (22494613).

20101120002011 is an equidigital number, since it uses as much as digits as its factorization.

20101120002011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22494612.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20101120002011 its reverse (11020002110102), we get a palindrome (31121122112113).

The spelling of 20101120002011 in words is "twenty trillion, one hundred one billion, one hundred twenty million, two thousand, eleven".