13320144020 has 12 divisors (see below), whose sum is σ = 27972302484. Its totient is φ = 5328057600.

The previous prime is 13320144017. The next prime is 13320144023. The reversal of 13320144020 is 2044102331.

It is an interprime number because it is at equal distance from previous prime (13320144017) and next prime (13320144023).

It can be written as a sum of positive squares in 2 ways, for example, as 8097480196 + 5222663824 = 89986^2 + 72268^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 666007201 = 13320144020 / (1 + 3 + 3 + 2 + 0 + 1 + 4 + 4 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 13320143983 and 13320144001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320144023) 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, 333003581 + ... + 333003620.

It is an arithmetic number, because the mean of its divisors is an integer number (2331025207).

Almost surely, 2^13320144020 is an apocalyptic number.

13320144020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13320144020 is an abundant number, since it is smaller than the sum of its proper divisors (14652158464).

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

13320144020 is a wasteful number, since it uses less digits than its factorization.

13320144020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666007210 (or 666007208 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 13320144020 its reverse (2044102331), we get a palindrome (15364246351).

The spelling of 13320144020 in words is "thirteen billion, three hundred twenty million, one hundred forty-four thousand, twenty".