13131104323 has 4 divisors (see below), whose sum is σ = 13251573280. Its totient is φ = 13010635368.

The previous prime is 13131104303. The next prime is 13131104423. The reversal of 13131104323 is 32340113131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13131104323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13131104294 and 13131104303.

It is not an unprimeable number, because it can be changed into a prime (13131104303) 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, 60234315 + ... + 60234532.

It is an arithmetic number, because the mean of its divisors is an integer number (3312893320).

Almost surely, 2^13131104323 is an apocalyptic number.

13131104323 is a deficient number, since it is larger than the sum of its proper divisors (120468957).

13131104323 is a wasteful number, since it uses less digits than its factorization.

13131104323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120468956.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 13131104323 its reverse (32340113131), we get a palindrome (45471217454).

The spelling of 13131104323 in words is "thirteen billion, one hundred thirty-one million, one hundred four thousand, three hundred twenty-three".