13420422020 has 24 divisors (see below), whose sum is σ = 28660564800. Its totient is φ = 5277182432.

The previous prime is 13420422011. The next prime is 13420422031. The reversal of 13420422020 is 2022402431.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13420421983 and 13420422001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5685440 + ... + 5687799.

It is an arithmetic number, because the mean of its divisors is an integer number (1194190200).

Almost surely, 2^13420422020 is an apocalyptic number.

13420422020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13420422020 is an abundant number, since it is smaller than the sum of its proper divisors (15240142780).

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

13420422020 is a wasteful number, since it uses less digits than its factorization.

13420422020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11373307 (or 11373305 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 13420422020 its reverse (2022402431), we get a palindrome (15442824451).

The spelling of 13420422020 in words is "thirteen billion, four hundred twenty million, four hundred twenty-two thousand, twenty".