20201110101 has 20 divisors (see below), whose sum is σ = 30182689152. Its totient is φ = 13464853128.

The previous prime is 20201110073. The next prime is 20201110117. The reversal of 20201110101 is 10101110202.

It is a happy number.

It is not a de Polignac number, because 20201110101 - 2⁹ = 20201109589 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 (20201110001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 469186 + ... + 510428.

Almost surely, 2^20201110101 is an apocalyptic number.

It is an amenable number.

20201110101 is a deficient number, since it is larger than the sum of its proper divisors (9981579051).

20201110101 is an equidigital number, since it uses as much as digits as its factorization.

20201110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47302 (or 47293 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 20201110101 its reverse (10101110202), we get a palindrome (30302220303).

The spelling of 20201110101 in words is "twenty billion, two hundred one million, one hundred ten thousand, one hundred one".