13320200020 has 12 divisors (see below), whose sum is σ = 27972420084. Its totient is φ = 5328080000.

The previous prime is 13320200011. The next prime is 13320200027. The reversal of 13320200020 is 2000202331.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7604537616 + 5715662404 = 87204^2 + 75602^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320200027) 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, 333004981 + ... + 333005020.

It is an arithmetic number, because the mean of its divisors is an integer number (2331035007).

Almost surely, 2^13320200020 is an apocalyptic number.

13320200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13320200020 is an abundant number, since it is smaller than the sum of its proper divisors (14652220064).

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

13320200020 is a wasteful number, since it uses less digits than its factorization.

13320200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666010010 (or 666010008 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 13320200020 its reverse (2000202331), we get a palindrome (15320402351).

The spelling of 13320200020 in words is "thirteen billion, three hundred twenty million, two hundred thousand, twenty".