13131343 has 2 divisors, whose sum is σ = 13131344. Its totient is φ = 13131342.

The previous prime is 13131341. The next prime is 13131359. The reversal of 13131343 is 34313131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13131343 - 2¹ = 13131341 is a prime.

Together with 13131341, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13131343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13131341) 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 as a sum of consecutive naturals, namely, 6565671 + 6565672.

It is an arithmetic number, because the mean of its divisors is an integer number (6565672).

Almost surely, 2^13131343 is an apocalyptic number.

13131343 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131343 is an equidigital number, since it uses as much as digits as its factorization.

13131343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 19.

The square root of 13131343 is about 3623.7194979744. The cubic root of 13131343 is about 235.9226920490.

Adding to 13131343 its reverse (34313131), we get a palindrome (47444474).

The spelling of 13131343 in words is "thirteen million, one hundred thirty-one thousand, three hundred forty-three".