20023103101 has 4 divisors (see below), whose sum is σ = 20023418304. Its totient is φ = 20022787900.

The previous prime is 20023103063. The next prime is 20023103141. The reversal of 20023103101 is 10130132002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10130132002 = 2 ⋅5065066001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20023103101 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 (20023103141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25285 + ... + 201706.

It is an arithmetic number, because the mean of its divisors is an integer number (5005854576).

Almost surely, 2^20023103101 is an apocalyptic number.

It is an amenable number.

20023103101 is a deficient number, since it is larger than the sum of its proper divisors (315203).

20023103101 is an equidigital number, since it uses as much as digits as its factorization.

20023103101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315202.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20023103101 its reverse (10130132002), we get a palindrome (30153235103).

The spelling of 20023103101 in words is "twenty billion, twenty-three million, one hundred three thousand, one hundred one".