20104013101 has 4 divisors (see below), whose sum is σ = 20104376572. Its totient is φ = 20103649632.

The previous prime is 20104013087. The next prime is 20104013131. The reversal of 20104013101 is 10131040102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10131040102 = 2 ⋅5065520051.

It can be written as a sum of positive squares in 2 ways, for example, as 10401960100 + 9702053001 = 101990^2 + 98499^2 .

It is a cyclic number.

It is not a de Polignac number, because 20104013101 - 2⁹ = 20104012589 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 (20104013131) 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, 79656 + ... + 215761.

It is an arithmetic number, because the mean of its divisors is an integer number (5026094143).

Almost surely, 2^20104013101 is an apocalyptic number.

It is an amenable number.

20104013101 is a deficient number, since it is larger than the sum of its proper divisors (363471).

20104013101 is an equidigital number, since it uses as much as digits as its factorization.

20104013101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363470.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20104013101 its reverse (10131040102), we get a palindrome (30235053203).

The spelling of 20104013101 in words is "twenty billion, one hundred four million, thirteen thousand, one hundred one".