13213322020 has 12 divisors (see below), whose sum is σ = 27747976284. Its totient is φ = 5285328800.

The previous prime is 13213322011. The next prime is 13213322021. The reversal of 13213322020 is 2022331231.

It can be written as a sum of positive squares in 2 ways, for example, as 8050037284 + 5163284736 = 89722^2 + 71856^2 .

It is not an unprimeable number, because it can be changed into a prime (13213322021) 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, 330333031 + ... + 330333070.

It is an arithmetic number, because the mean of its divisors is an integer number (2312331357).

Almost surely, 2^13213322020 is an apocalyptic number.

13213322020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13213322020 is an abundant number, since it is smaller than the sum of its proper divisors (14534654264).

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

13213322020 is a wasteful number, since it uses less digits than its factorization.

13213322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660666110 (or 660666108 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 13213322020 its reverse (2022331231), we get a palindrome (15235653251).

The spelling of 13213322020 in words is "thirteen billion, two hundred thirteen million, three hundred twenty-two thousand, twenty".