20424002023 has 4 divisors (see below), whose sum is σ = 20424423640. Its totient is φ = 20423580408.

The previous prime is 20424002021. The next prime is 20424002033. The reversal of 20424002023 is 32020042402.

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 20424002023 - 2¹ = 20424002021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424002021) 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, 127053 + ... + 238726.

It is an arithmetic number, because the mean of its divisors is an integer number (5106105910).

Almost surely, 2^20424002023 is an apocalyptic number.

20424002023 is a deficient number, since it is larger than the sum of its proper divisors (421617).

20424002023 is an equidigital number, since it uses as much as digits as its factorization.

20424002023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421616.

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 20424002023 its reverse (32020042402), we get a palindrome (52444044425).

The spelling of 20424002023 in words is "twenty billion, four hundred twenty-four million, two thousand, twenty-three".