20202011101 has 4 divisors (see below), whose sum is σ = 20313624604. Its totient is φ = 20090397600.

The previous prime is 20202011099. The next prime is 20202011131. The reversal of 20202011101 is 10111020202.

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 1463139001 + 18738872100 = 38251^2 + 136890^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202011101 - 2¹ = 20202011099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202011131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55806480 + ... + 55806841.

It is an arithmetic number, because the mean of its divisors is an integer number (5078406151).

Almost surely, 2^20202011101 is an apocalyptic number.

It is an amenable number.

20202011101 is a deficient number, since it is larger than the sum of its proper divisors (111613503).

20202011101 is a wasteful number, since it uses less digits than its factorization.

20202011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111613502.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20202011101 its reverse (10111020202), we get a palindrome (30313031303).

The spelling of 20202011101 in words is "twenty billion, two hundred two million, eleven thousand, one hundred one".