13031231303 has 4 divisors (see below), whose sum is σ = 13146552048. Its totient is φ = 12915910560.

The previous prime is 13031231251. The next prime is 13031231333. The reversal of 13031231303 is 30313213031.

13031231303 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 an emirpimes, since its reverse is a distinct semiprime: 30313213031 = 62653 ⋅483827.

It is a cyclic number.

It is not a de Polignac number, because 13031231303 - 2⁸ = 13031231047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031231333) 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, 57660203 + ... + 57660428.

It is an arithmetic number, because the mean of its divisors is an integer number (3286638012).

Almost surely, 2^13031231303 is an apocalyptic number.

13031231303 is a deficient number, since it is larger than the sum of its proper divisors (115320745).

13031231303 is a wasteful number, since it uses less digits than its factorization.

13031231303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115320744.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 13031231303 its reverse (30313213031), we get a palindrome (43344444334).

The spelling of 13031231303 in words is "thirteen billion, thirty-one million, two hundred thirty-one thousand, three hundred three".