13331323231 has 8 divisors (see below), whose sum is σ = 13414424144. Its totient is φ = 13248480960.

The previous prime is 13331323219. The next prime is 13331323237. The reversal of 13331323231 is 13232313331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13331323231 - 2¹¹ = 13331321183 is a prime.

It is a super-2 number, since 2×13331323231² (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 = 13331323196 and 13331323205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13331323237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39265 + ... + 167941.

It is an arithmetic number, because the mean of its divisors is an integer number (1676803018).

Almost surely, 2^13331323231 is an apocalyptic number.

13331323231 is a deficient number, since it is larger than the sum of its proper divisors (83100913).

13331323231 is a wasteful number, since it uses less digits than its factorization.

13331323231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129321.

The product of its digits is 2916, while the sum is 25.

Adding to 13331323231 its reverse (13232313331), we get a palindrome (26563636562).

The spelling of 13331323231 in words is "thirteen billion, three hundred thirty-one million, three hundred twenty-three thousand, two hundred thirty-one".