13431043 has 4 divisors (see below), whose sum is σ = 14137960. Its totient is φ = 12724128.

The previous prime is 13431017. The next prime is 13431053. The reversal of 13431043 is 34013431.

13431043 is digitally balanced in base 3, 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: 34013431 = 619 ⋅54949.

It is a cyclic number.

It is not a de Polignac number, because 13431043 - 2¹⁷ = 13299971 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 706897 = 13431043 / (1 + 3 + 4 + 3 + 1 + 0 + 4 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13431043.

It is not an unprimeable number, because it can be changed into a prime (13431053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353430 + ... + 353467.

It is an arithmetic number, because the mean of its divisors is an integer number (3534490).

Almost surely, 2^13431043 is an apocalyptic number.

13431043 is a deficient number, since it is larger than the sum of its proper divisors (706917).

13431043 is an equidigital number, since it uses as much as digits as its factorization.

13431043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706916.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 13431043 is about 3664.8387413364. The cubic root of 13431043 is about 237.7040492014.

Adding to 13431043 its reverse (34013431), we get a palindrome (47444474).

It can be divided in two parts, 13 and 431043, that added together give a triangular number (431056 = T₉₂₈).

The spelling of 13431043 in words is "thirteen million, four hundred thirty-one thousand, forty-three".