13311432131 has 4 divisors (see below), whose sum is σ = 13311713712. Its totient is φ = 13311150552.

The previous prime is 13311432119. The next prime is 13311432133. The reversal of 13311432131 is 13123411331.

13311432131 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: 13123411331 = 3881 ⋅3381451.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13311432131 is a prime.

It is a super-2 number, since 2×13311432131² (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 = 13311432097 and 13311432106.

It is not an unprimeable number, because it can be changed into a prime (13311432133) 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, 50636 + ... + 170841.

It is an arithmetic number, because the mean of its divisors is an integer number (3327928428).

Almost surely, 2^13311432131 is an apocalyptic number.

13311432131 is a deficient number, since it is larger than the sum of its proper divisors (281581).

13311432131 is an equidigital number, since it uses as much as digits as its factorization.

13311432131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281580.

The product of its digits is 648, while the sum is 23.

Adding to 13311432131 its reverse (13123411331), we get a palindrome (26434843462).

The spelling of 13311432131 in words is "thirteen billion, three hundred eleven million, four hundred thirty-two thousand, one hundred thirty-one".