20023022101 has 8 divisors (see below), whose sum is σ = 20050101720. Its totient is φ = 19995962112.

The previous prime is 20023022099. The next prime is 20023022143. The reversal of 20023022101 is 10122032002.

It can be written as a sum of positive squares in 4 ways, for example, as 764799025 + 19258223076 = 27655^2 + 138774^2 .

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 20023022101 - 2¹ = 20023022099 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 (20023028101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3539191 + ... + 3544843.

It is an arithmetic number, because the mean of its divisors is an integer number (2506262715).

Almost surely, 2^20023022101 is an apocalyptic number.

It is an amenable number.

20023022101 is a deficient number, since it is larger than the sum of its proper divisors (27079619).

20023022101 is a wasteful number, since it uses less digits than its factorization.

20023022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9815.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20023022101 its reverse (10122032002), we get a palindrome (30145054103).

Subtracting from 20023022101 its reverse (10122032002), we obtain a palindrome (9900990099).

The spelling of 20023022101 in words is "twenty billion, twenty-three million, twenty-two thousand, one hundred one".