13233320020 has 144 divisors (see below), whose sum is σ = 30483048960. Its totient is φ = 4815562752.

The previous prime is 13233319993. The next prime is 13233320027. The reversal of 13233320020 is 2002333231.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13233320020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13233320027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30561724 + ... + 30562156.

It is an arithmetic number, because the mean of its divisors is an integer number (211687840).

Almost surely, 2^13233320020 is an apocalyptic number.

13233320020 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 13233320020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15241524480).

13233320020 is an abundant number, since it is smaller than the sum of its proper divisors (17249728940).

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

13233320020 is a wasteful number, since it uses less digits than its factorization.

13233320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 13233320020 its reverse (2002333231), we get a palindrome (15235653251).

The spelling of 13233320020 in words is "thirteen billion, two hundred thirty-three million, three hundred twenty thousand, twenty".