20110011001101 has 16 divisors (see below), whose sum is σ = 34048695875200. Its totient is φ = 11491434857664.

The previous prime is 20110011001099. The next prime is 20110011001163. The reversal of 20110011001101 is 10110011001102.

It is not a de Polignac number, because 20110011001101 - 2¹ = 20110011001099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110011001601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53201087116 + ... + 53201087493.

It is an arithmetic number, because the mean of its divisors is an integer number (2128043492200).

Almost surely, 2^{20110011001101} is an apocalyptic number.

20110011001101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20110011001101 is a deficient number, since it is larger than the sum of its proper divisors (13938684874099).

20110011001101 is a wasteful number, since it uses less digits than its factorization.

20110011001101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106402174625 (or 106402174619 counting only the distinct ones).

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

Adding to 20110011001101 its reverse (10110011001102), we get a palindrome (30220022002203).

Subtracting from 20110011001101 its reverse (10110011001102), we obtain a palindrome (9999999999999).

The spelling of 20110011001101 in words is "twenty trillion, one hundred ten billion, eleven million, one thousand, one hundred one".