13203333220 has 144 divisors (see below), whose sum is σ = 37256308992. Its totient is φ = 3873192960.

The previous prime is 13203333211. The next prime is 13203333257. The reversal of 13203333220 is 2233330231.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 13203333191 and 13203333200.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 147237 + ... + 219283.

It is an arithmetic number, because the mean of its divisors is an integer number (258724368).

Almost surely, 2^13203333220 is an apocalyptic number.

13203333220 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 13203333220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18628154496).

13203333220 is an abundant number, since it is smaller than the sum of its proper divisors (24052975772).

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

13203333220 is a wasteful number, since it uses less digits than its factorization.

13203333220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72098 (or 72089 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 13203333220 its reverse (2233330231), we get a palindrome (15436663451).

The spelling of 13203333220 in words is "thirteen billion, two hundred three million, three hundred thirty-three thousand, two hundred twenty".