13203313320 has 128 divisors (see below), whose sum is σ = 40614566400. Its totient is φ = 3432185856.

The previous prime is 13203313303. The next prime is 13203313327. The reversal of 13203313320 is 2331330231.

It is not an unprimeable number, because it can be changed into a prime (13203313327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1444926 + ... + 1454034.

It is an arithmetic number, because the mean of its divisors is an integer number (317301300).

Almost surely, 2^13203313320 is an apocalyptic number.

13203313320 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 13203313320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20307283200).

13203313320 is an abundant number, since it is smaller than the sum of its proper divisors (27411253080).

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

13203313320 is a wasteful number, since it uses less digits than its factorization.

13203313320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9427 (or 9423 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 13203313320 its reverse (2331330231), we get a palindrome (15534643551).

The spelling of 13203313320 in words is "thirteen billion, two hundred three million, three hundred thirteen thousand, three hundred twenty".