13203303320 has 16 divisors (see below), whose sum is σ = 29707432560. Its totient is φ = 5281321312.

The previous prime is 13203303263. The next prime is 13203303329. The reversal of 13203303320 is 2330330231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13203303292 and 13203303301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203303329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165041252 + ... + 165041331.

It is an arithmetic number, because the mean of its divisors is an integer number (1856714535).

Almost surely, 2^13203303320 is an apocalyptic number.

13203303320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13203303320 is an abundant number, since it is smaller than the sum of its proper divisors (16504129240).

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

13203303320 is a wasteful number, since it uses less digits than its factorization.

13203303320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330082594 (or 330082590 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 13203303320 its reverse (2330330231), we get a palindrome (15533633551).

The spelling of 13203303320 in words is "thirteen billion, two hundred three million, three hundred three thousand, three hundred twenty".