13203120 has 160 divisors (see below), whose sum is σ = 48568320. Its totient is φ = 2903040.

The previous prime is 13203103. The next prime is 13203139. The reversal of 13203120 is 2130231.

It is a happy number.

13203120 is digitally balanced in base 2 and base 4, because in such bases 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 (12).

It is a junction number, because it is equal to n+sod(n) for n = 13203096 and 13203105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48585 + ... + 48855.

It is an arithmetic number, because the mean of its divisors is an integer number (303552).

Almost surely, 2^13203120 is an apocalyptic number.

13203120 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 13203120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24284160).

13203120 is an abundant number, since it is smaller than the sum of its proper divisors (35365200).

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

13203120 is a wasteful number, since it uses less digits than its factorization.

13203120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 13203120 is about 3633.6097754162. The cubic root of 13203120 is about 236.3517688142.

Adding to 13203120 its reverse (2130231), we get a palindrome (15333351).

The spelling of 13203120 in words is "thirteen million, two hundred three thousand, one hundred twenty".