20112344101 has 4 divisors (see below), whose sum is σ = 20112708204. Its totient is φ = 20111980000.

The previous prime is 20112344093. The next prime is 20112344129. The reversal of 20112344101 is 10144321102.

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 13676133025 + 6436211076 = 116945^2 + 80226^2 .

It is a cyclic number.

It is not a de Polignac number, because 20112344101 - 2³ = 20112344093 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 (20112344191) 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, 80200 + ... + 216001.

It is an arithmetic number, because the mean of its divisors is an integer number (5028177051).

Almost surely, 2^20112344101 is an apocalyptic number.

It is an amenable number.

20112344101 is a deficient number, since it is larger than the sum of its proper divisors (364103).

20112344101 is an equidigital number, since it uses as much as digits as its factorization.

20112344101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364102.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20112344101 its reverse (10144321102), we get a palindrome (30256665203).

The spelling of 20112344101 in words is "twenty billion, one hundred twelve million, three hundred forty-four thousand, one hundred one".