13103328 has 192 divisors, whose sum is σ = 44126208. Its totient is φ = 3317760.

The previous prime is 13103323. The next prime is 13103329. The reversal of 13103328 is 82330131.

It is a happy number.

13103328 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 (21).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103323) 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, 354126 + ... + 354162.

It is an arithmetic number, because the mean of its divisors is an integer number (229824).

Almost surely, 2^13103328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13103328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22063104).

13103328 is an abundant number, since it is smaller than the sum of its proper divisors (31022880).

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

13103328 is a wasteful number, since it uses less digits than its factorization.

13103328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 13103328 is about 3619.8519306734. The cubic root of 13103328 is about 235.7547965529.

Adding to 13103328 its reverse (82330131), we get a palindrome (95433459).

It can be divided in two parts, 13103 and 328, that added together give a palindrome (13431).

The spelling of 13103328 in words is "thirteen million, one hundred three thousand, three hundred twenty-eight".