13131132323 has 4 divisors (see below), whose sum is σ = 13134079008. Its totient is φ = 13128185640.

The previous prime is 13131132319. The next prime is 13131132347. The reversal of 13131132323 is 32323113131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32323113131 = 743 ⋅43503517.

It is a cyclic number.

It is not a de Polignac number, because 13131132323 - 2² = 13131132319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13131132383) 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, 1466648 + ... + 1475573.

It is an arithmetic number, because the mean of its divisors is an integer number (3283519752).

Almost surely, 2^13131132323 is an apocalyptic number.

13131132323 is a deficient number, since it is larger than the sum of its proper divisors (2946685).

13131132323 is an equidigital number, since it uses as much as digits as its factorization.

13131132323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946684.

The product of its digits is 972, while the sum is 23.

Adding to 13131132323 its reverse (32323113131), we get a palindrome (45454245454).

The spelling of 13131132323 in words is "thirteen billion, one hundred thirty-one million, one hundred thirty-two thousand, three hundred twenty-three".