201011101101 has 12 divisors (see below), whose sum is σ = 290407865020. Its totient is φ = 133980402240.

The previous prime is 201011101079. The next prime is 201011101147. The reversal of 201011101101 is 101101110102.

It can be written as a sum of positive squares in 2 ways, for example, as 113926500900 + 87084600201 = 337530^2 + 295101^2 .

It is not a de Polignac number, because 201011101101 - 2⁵ = 201011101069 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 (201011101301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2202670 + ... + 2292111.

Almost surely, 2^201011101101 is an apocalyptic number.

It is an amenable number.

201011101101 is a deficient number, since it is larger than the sum of its proper divisors (89396763919).

201011101101 is a wasteful number, since it uses less digits than its factorization.

201011101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4499756 (or 4499753 counting only the distinct ones).

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

Adding to 201011101101 its reverse (101101110102), we get a palindrome (302112211203).

Subtracting from 201011101101 its reverse (101101110102), we obtain a palindrome (99909990999).

The spelling of 201011101101 in words is "two hundred one billion, eleven million, one hundred one thousand, one hundred one".