20200101101 has 4 divisors (see below), whose sum is σ = 20400102204. Its totient is φ = 20000100000.

The previous prime is 20200101071. The next prime is 20200101143. The reversal of 20200101101 is 10110100202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16351759876 + 3848341225 = 127874^2 + 62035^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20200101101 is a prime.

It is a Duffinian number.

20200101101 is a modest number, since divided by 101101 gives 20200 as remainder.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200101151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100000400 + ... + 100000601.

It is an arithmetic number, because the mean of its divisors is an integer number (5100025551).

Almost surely, 2^20200101101 is an apocalyptic number.

It is an amenable number.

20200101101 is a deficient number, since it is larger than the sum of its proper divisors (200001103).

20200101101 is a wasteful number, since it uses less digits than its factorization.

20200101101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200001102.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20200101101 its reverse (10110100202), we get a palindrome (30310201303).

It can be divided in two parts, 20200101 and 101, that added together give a palindrome (20200202).

The spelling of 20200101101 in words is "twenty billion, two hundred million, one hundred one thousand, one hundred one".