13321131413 has 4 divisors (see below), whose sum is σ = 13321841868. Its totient is φ = 13320420960.

The previous prime is 13321131407. The next prime is 13321131431. The reversal of 13321131413 is 31413112331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31413112331 = 197 ⋅159457423.

It can be written as a sum of positive squares in 2 ways, for example, as 8675618449 + 4645512964 = 93143^2 + 68158^2 .

It is a cyclic number.

It is not a de Polignac number, because 13321131413 - 2³² = 9026164117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321131403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326318 + ... + 364863.

It is an arithmetic number, because the mean of its divisors is an integer number (3330460467).

Almost surely, 2^13321131413 is an apocalyptic number.

It is an amenable number.

13321131413 is a deficient number, since it is larger than the sum of its proper divisors (710455).

13321131413 is an equidigital number, since it uses as much as digits as its factorization.

13321131413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710454.

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

Adding to 13321131413 its reverse (31413112331), we get a palindrome (44734243744).

The spelling of 13321131413 in words is "thirteen billion, three hundred twenty-one million, one hundred thirty-one thousand, four hundred thirteen".