13243723 has 2 divisors, whose sum is σ = 13243724. Its totient is φ = 13243722.

The previous prime is 13243717. The next prime is 13243739. The reversal of 13243723 is 32734231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13243723 - 2⁹ = 13243211 is a prime.

It is not a weakly prime, because it can be changed into another prime (13243753) 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 as a sum of consecutive naturals, namely, 6621861 + 6621862.

It is an arithmetic number, because the mean of its divisors is an integer number (6621862).

Almost surely, 2^13243723 is an apocalyptic number.

13243723 is a deficient number, since it is larger than the sum of its proper divisors (1).

13243723 is an equidigital number, since it uses as much as digits as its factorization.

13243723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 25.

The square root of 13243723 is about 3639.1926302409. The cubic root of 13243723 is about 236.5938017658.

Adding to 13243723 its reverse (32734231), we get a palindrome (45977954).

The spelling of 13243723 in words is "thirteen million, two hundred forty-three thousand, seven hundred twenty-three".