20422324423 has 4 divisors (see below), whose sum is σ = 20423271960. Its totient is φ = 20421376888.

The previous prime is 20422324399. The next prime is 20422324441. The reversal of 20422324423 is 32442322402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20422324423 - 2³³ = 11832389831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20422324391 and 20422324400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20422324453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440668 + ... + 484801.

It is an arithmetic number, because the mean of its divisors is an integer number (5105817990).

Almost surely, 2^20422324423 is an apocalyptic number.

20422324423 is a deficient number, since it is larger than the sum of its proper divisors (947537).

20422324423 is an equidigital number, since it uses as much as digits as its factorization.

20422324423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947536.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 20422324423 its reverse (32442322402), we get a palindrome (52864646825).

The spelling of 20422324423 in words is "twenty billion, four hundred twenty-two million, three hundred twenty-four thousand, four hundred twenty-three".