20030105023 has 2 divisors, whose sum is σ = 20030105024. Its totient is φ = 20030105022.

The previous prime is 20030105021. The next prime is 20030105063. The reversal of 20030105023 is 32050103002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20030105023 - 2¹ = 20030105021 is a prime.

Together with 20030105021, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20030104988 and 20030105006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20030105021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10015052511 + 10015052512.

It is an arithmetic number, because the mean of its divisors is an integer number (10015052512).

Almost surely, 2^20030105023 is an apocalyptic number.

20030105023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20030105023 is an equidigital number, since it uses as much as digits as its factorization.

20030105023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 16.

Adding to 20030105023 its reverse (32050103002), we get a palindrome (52080208025).

The spelling of 20030105023 in words is "twenty billion, thirty million, one hundred five thousand, twenty-three".