13331333020 has 72 divisors (see below), whose sum is σ = 29786687280. Its totient is φ = 5010892800.

The previous prime is 13331333017. The next prime is 13331333021. The reversal of 13331333020 is 2033313331.

It is a junction number, because it is equal to n+sod(n) for n = 13331332982 and 13331333000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13331333021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4674595 + ... + 4677445.

It is an arithmetic number, because the mean of its divisors is an integer number (413703990).

Almost surely, 2^13331333020 is an apocalyptic number.

13331333020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13331333020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14893343640).

13331333020 is an abundant number, since it is smaller than the sum of its proper divisors (16455354260).

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

13331333020 is a wasteful number, since it uses less digits than its factorization.

13331333020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703 (or 3684 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 13331333020 its reverse (2033313331), we get a palindrome (15364646351).

The spelling of 13331333020 in words is "thirteen billion, three hundred thirty-one million, three hundred thirty-three thousand, twenty".