20054021101 has 8 divisors (see below), whose sum is σ = 20749531320. Its totient is φ = 19358777088.

The previous prime is 20054021089. The next prime is 20054021107. The reversal of 20054021101 is 10112045002.

It can be written as a sum of positive squares in 4 ways, for example, as 809118025 + 19244903076 = 28445^2 + 138726^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20054021101 - 2⁹ = 20054020589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20054021107) 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 7 ways as a sum of consecutive naturals, for example, 93265 + ... + 220921.

It is an arithmetic number, because the mean of its divisors is an integer number (2593691415).

Almost surely, 2^20054021101 is an apocalyptic number.

It is an amenable number.

20054021101 is a deficient number, since it is larger than the sum of its proper divisors (695510219).

20054021101 is a wasteful number, since it uses less digits than its factorization.

20054021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133103.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 20054021101 its reverse (10112045002), we get a palindrome (30166066103).

The spelling of 20054021101 in words is "twenty billion, fifty-four million, twenty-one thousand, one hundred one".