20100101120011 has 32 divisors (see below), whose sum is σ = 22188600697536. Its totient is φ = 18056540736000.

The previous prime is 20100101120009. The next prime is 20100101120027. The reversal of 20100101120011 is 11002110100102.

It is a cyclic number.

It is not a de Polignac number, because 20100101120011 - 2¹ = 20100101120009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20100101120011.

It is not an unprimeable number, because it can be changed into a prime (20100101120311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 640992745 + ... + 641024101.

It is an arithmetic number, because the mean of its divisors is an integer number (693393771798).

Almost surely, 2^{20100101120011} is an apocalyptic number.

20100101120011 is a deficient number, since it is larger than the sum of its proper divisors (2088499577525).

20100101120011 is a wasteful number, since it uses less digits than its factorization.

20100101120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33583.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20100101120011 its reverse (11002110100102), we get a palindrome (31102211220113).

The spelling of 20100101120011 in words is "twenty trillion, one hundred billion, one hundred one million, one hundred twenty thousand, eleven".