13303113231 has 4 divisors (see below), whose sum is σ = 17737484312. Its totient is φ = 8868742152.

The previous prime is 13303113181. The next prime is 13303113233. The reversal of 13303113231 is 13231130331.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13303113231 - 2¹¹ = 13303111183 is a prime.

It is a super-2 number, since 2×13303113231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13303113198 and 13303113207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13303113233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2217185536 + ... + 2217185541.

It is an arithmetic number, because the mean of its divisors is an integer number (4434371078).

Almost surely, 2^13303113231 is an apocalyptic number.

13303113231 is a deficient number, since it is larger than the sum of its proper divisors (4434371081).

13303113231 is an equidigital number, since it uses as much as digits as its factorization.

13303113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4434371080.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 13303113231 its reverse (13231130331), we get a palindrome (26534243562).

The spelling of 13303113231 in words is "thirteen billion, three hundred three million, one hundred thirteen thousand, two hundred thirty-one".