13203112 has 32 divisors (see below), whose sum is σ = 27014400. Its totient is φ = 6012864.

The previous prime is 13203103. The next prime is 13203139. The reversal of 13203112 is 21130231.

13203112 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 (13).

It is a zygodrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 13203092 and 13203101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7413 + ... + 9019.

It is an arithmetic number, because the mean of its divisors is an integer number (844200).

Almost surely, 2^13203112 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 13203112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13507200).

13203112 is an abundant number, since it is smaller than the sum of its proper divisors (13811288).

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

13203112 is a wasteful number, since it uses less digits than its factorization.

13203112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705 (or 1701 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 13203112 is about 3633.6086745823. The cubic root of 13203112 is about 236.3517210777.

Adding to 13203112 its reverse (21130231), we get a palindrome (34333343).

The spelling of 13203112 in words is "thirteen million, two hundred three thousand, one hundred twelve".