13043431 has 2 divisors, whose sum is σ = 13043432. Its totient is φ = 13043430.

The previous prime is 13043411. The next prime is 13043441. The reversal of 13043431 is 13434031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13043431 - 2⁵ = 13043399 is a prime.

It is a super-2 number, since 2×13043431² = 340262184503522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13043399 and 13043408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13043411) 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, 6521715 + 6521716.

It is an arithmetic number, because the mean of its divisors is an integer number (6521716).

Almost surely, 2^13043431 is an apocalyptic number.

13043431 is a deficient number, since it is larger than the sum of its proper divisors (1).

13043431 is an equidigital number, since it uses as much as digits as its factorization.

13043431 is an odious number, because the sum of its binary digits is odd.

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

The square root of 13043431 is about 3611.5690495960. The cubic root of 13043431 is about 235.3950259621.

Adding to 13043431 its reverse (13434031), we get a palindrome (26477462).

The spelling of 13043431 in words is "thirteen million, forty-three thousand, four hundred thirty-one".