20423022403 has 8 divisors (see below), whose sum is σ = 24713573472. Its totient is φ = 16475715456.

The previous prime is 20423022391. The next prime is 20423022407. The reversal of 20423022403 is 30422032402.

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 20423022403 - 2¹³ = 20423014211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20423022407) 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, 85810900 + ... + 85811137.

It is an arithmetic number, because the mean of its divisors is an integer number (3089196684).

Almost surely, 2^20423022403 is an apocalyptic number.

20423022403 is a deficient number, since it is larger than the sum of its proper divisors (4290551069).

20423022403 is a wasteful number, since it uses less digits than its factorization.

20423022403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171622061.

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

Adding to 20423022403 its reverse (30422032402), we get a palindrome (50845054805).

Subtracting 20423022403 from its reverse (30422032402), we obtain a palindrome (9999009999).

The spelling of 20423022403 in words is "twenty billion, four hundred twenty-three million, twenty-two thousand, four hundred three".