20023440214420 has 24 divisors (see below), whose sum is σ = 42943888802304. Its totient is φ = 7838963828256.

The previous prime is 20023440214357. The next prime is 20023440214429. The reversal of 20023440214420 is 2441204432002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023440214429) 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, 10650765132 + ... + 10650767011.

It is an arithmetic number, because the mean of its divisors is an integer number (1789328700096).

Almost surely, 2^{20023440214420} is an apocalyptic number.

20023440214420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20023440214420 is an abundant number, since it is smaller than the sum of its proper divisors (22920448587884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20023440214420 is a wasteful number, since it uses less digits than its factorization.

20023440214420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21301532199 (or 21301532197 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 20023440214420 its reverse (2441204432002), we get a palindrome (22464644646422).

The spelling of 20023440214420 in words is "twenty trillion, twenty-three billion, four hundred forty million, two hundred fourteen thousand, four hundred twenty".