20324020423 has 12 divisors (see below), whose sum is σ = 23646339192. Its totient is φ = 17417559600.

The previous prime is 20324020417. The next prime is 20324020429. The reversal of 20324020423 is 32402042302.

It is an interprime number because it is at equal distance from previous prime (20324020417) and next prime (20324020429).

It is not a de Polignac number, because 20324020423 - 2²⁹ = 19787149511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20324020394 and 20324020403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20324020429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275836 + ... + 341662.

It is an arithmetic number, because the mean of its divisors is an integer number (1970528266).

Almost surely, 2^20324020423 is an apocalyptic number.

20324020423 is a deficient number, since it is larger than the sum of its proper divisors (3322318769).

20324020423 is an equidigital number, since it uses as much as digits as its factorization.

20324020423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72142 (or 72135 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 20324020423 its reverse (32402042302), we get a palindrome (52726062725).

The spelling of 20324020423 in words is "twenty billion, three hundred twenty-four million, twenty thousand, four hundred twenty-three".