13443220020 has 24 divisors (see below), whose sum is σ = 37641016224. Its totient is φ = 3584858656.

The previous prime is 13443220013. The next prime is 13443220051. The reversal of 13443220020 is 2002234431.

It is a super-2 number, since 2×13443220020² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112026774 + ... + 112026893.

It is an arithmetic number, because the mean of its divisors is an integer number (1568375676).

Almost surely, 2^13443220020 is an apocalyptic number.

13443220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13443220020 is an abundant number, since it is smaller than the sum of its proper divisors (24197796204).

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

13443220020 is a wasteful number, since it uses less digits than its factorization.

13443220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224053679 (or 224053677 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 13443220020 its reverse (2002234431), we get a palindrome (15445454451).

The spelling of 13443220020 in words is "thirteen billion, four hundred forty-three million, two hundred twenty thousand, twenty".