13203328320 has 672 divisors, whose sum is σ = 58375296000. Its totient is φ = 2784595968.

The previous prime is 13203328301. The next prime is 13203328331. The reversal of 13203328320 is 2382330231.

13203328320 is a `hidden beast` number, since 1 + 3 + 2 + 0 + 332 + 8 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5502481 + ... + 5504879.

It is an arithmetic number, because the mean of its divisors is an integer number (86868000).

Almost surely, 2^13203328320 is an apocalyptic number.

13203328320 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 13203328320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29187648000).

13203328320 is an abundant number, since it is smaller than the sum of its proper divisors (45171967680).

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

13203328320 is a wasteful number, since it uses less digits than its factorization.

13203328320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452 (or 2429 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 13203328320 its reverse (2382330231), we get a palindrome (15585658551).

The spelling of 13203328320 in words is "thirteen billion, two hundred three million, three hundred twenty-eight thousand, three hundred twenty".