13203240225 has 48 divisors (see below), whose sum is σ = 25752637440. Its totient is φ = 5841057600.

The previous prime is 13203240223. The next prime is 13203240269. The reversal of 13203240225 is 52204230231.

13203240225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13203240225 - 2¹ = 13203240223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13203240195 and 13203240204.

It is not an unprimeable number, because it can be changed into a prime (13203240223) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 389355 + ... + 421904.

It is an arithmetic number, because the mean of its divisors is an integer number (536513280).

Almost surely, 2^13203240225 is an apocalyptic number.

13203240225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13203240225 is a deficient number, since it is larger than the sum of its proper divisors (12549397215).

13203240225 is a wasteful number, since it uses less digits than its factorization.

13203240225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811310 (or 811305 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 13203240225 its reverse (52204230231), we get a palindrome (65407470456).

The spelling of 13203240225 in words is "thirteen billion, two hundred three million, two hundred forty thousand, two hundred twenty-five".