13233333020 has 72 divisors (see below), whose sum is σ = 29005769520. Its totient is φ = 5066991360.

The previous prime is 13233332989. The next prime is 13233333049. The reversal of 13233333020 is 2033333231.

It is a super-2 number, since 2×13233333020² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25302479 + ... + 25303001.

It is an arithmetic number, because the mean of its divisors is an integer number (402857910).

Almost surely, 2^13233333020 is an apocalyptic number.

13233333020 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 13233333020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14502884760).

13233333020 is an abundant number, since it is smaller than the sum of its proper divisors (15772436500).

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

13233333020 is an equidigital number, since it uses as much as digits as its factorization.

13233333020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 23.

Adding to 13233333020 its reverse (2033333231), we get a palindrome (15266666251).

The spelling of 13233333020 in words is "thirteen billion, two hundred thirty-three million, three hundred thirty-three thousand, twenty".