20323110123 has 6 divisors (see below), whose sum is σ = 29355603524. Its totient is φ = 13548740076.

The previous prime is 20323110121. The next prime is 20323110127. The reversal of 20323110123 is 32101132302.

It is not a de Polignac number, because 20323110123 - 2¹ = 20323110121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20323110096 and 20323110105.

It is not an unprimeable number, because it can be changed into a prime (20323110121) 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 5 ways as a sum of consecutive naturals, for example, 1129061665 + ... + 1129061682.

Almost surely, 2^20323110123 is an apocalyptic number.

20323110123 is a deficient number, since it is larger than the sum of its proper divisors (9032493401).

20323110123 is a wasteful number, since it uses less digits than its factorization.

20323110123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258123353 (or 2258123350 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20323110123 its reverse (32101132302), we get a palindrome (52424242425).

The spelling of 20323110123 in words is "twenty billion, three hundred twenty-three million, one hundred ten thousand, one hundred twenty-three".