201110011101 has 24 divisors (see below), whose sum is σ = 318186231480. Its totient is φ = 121835406336.

The previous prime is 201110011073. The next prime is 201110011111. The reversal of 201110011101 is 101110011102.

It can be written as a sum of positive squares in 4 ways, for example, as 63138623076 + 137971388025 = 251274^2 + 371445^2 .

It is not a de Polignac number, because 201110011101 - 2¹¹ = 201110009053 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201110011111) 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 23 ways as a sum of consecutive naturals, for example, 22658400 + ... + 22667273.

It is an arithmetic number, because the mean of its divisors is an integer number (13257759645).

Almost surely, 2^201110011101 is an apocalyptic number.

It is an amenable number.

201110011101 is a deficient number, since it is larger than the sum of its proper divisors (117076220379).

201110011101 is a wasteful number, since it uses less digits than its factorization.

201110011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45325725 (or 45325722 counting only the distinct ones).

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

Adding to 201110011101 its reverse (101110011102), we get a palindrome (302220022203).

Subtracting from 201110011101 its reverse (101110011102), we obtain a palindrome (99999999999).

The spelling of 201110011101 in words is "two hundred one billion, one hundred ten million, eleven thousand, one hundred one".