13203120211 has 4 divisors (see below), whose sum is σ = 13203350800. Its totient is φ = 13202889624.

The previous prime is 13203120163. The next prime is 13203120247. The reversal of 13203120211 is 11202130231.

13203120211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 11202130231 = 15887 ⋅705113.

It is a cyclic number.

It is not a de Polignac number, because 13203120211 - 2¹¹ = 13203118163 is a prime.

It is a super-2 number, since 2×13203120211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13203120251) 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 3 ways as a sum of consecutive naturals, for example, 43450 + ... + 168208.

It is an arithmetic number, because the mean of its divisors is an integer number (3300837700).

Almost surely, 2^13203120211 is an apocalyptic number.

13203120211 is a deficient number, since it is larger than the sum of its proper divisors (230589).

13203120211 is a wasteful number, since it uses less digits than its factorization.

13203120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230588.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13203120211 its reverse (11202130231), we get a palindrome (24405250442).

The spelling of 13203120211 in words is "thirteen billion, two hundred three million, one hundred twenty thousand, two hundred eleven".