13203223220 has 24 divisors (see below), whose sum is σ = 30247384608. Its totient is φ = 4801172000.

The previous prime is 13203223181. The next prime is 13203223249. The reversal of 13203223220 is 2232230231.

13203223220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 13203223192 and 13203223201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30007106 + ... + 30007545.

It is an arithmetic number, because the mean of its divisors is an integer number (1260307692).

Almost surely, 2^13203223220 is an apocalyptic number.

13203223220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13203223220 is an abundant number, since it is smaller than the sum of its proper divisors (17044161388).

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

13203223220 is a wasteful number, since it uses less digits than its factorization.

13203223220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60014671 (or 60014669 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 13203223220 its reverse (2232230231), we get a palindrome (15435453451).

The spelling of 13203223220 in words is "thirteen billion, two hundred three million, two hundred twenty-three thousand, two hundred twenty".