13240223 has 2 divisors, whose sum is σ = 13240224. Its totient is φ = 13240222.

The previous prime is 13240217. The next prime is 13240231. The reversal of 13240223 is 32204231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13240223 - 2⁶ = 13240159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13240523) 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, 6620111 + 6620112.

It is an arithmetic number, because the mean of its divisors is an integer number (6620112).

Almost surely, 2^13240223 is an apocalyptic number.

13240223 is a deficient number, since it is larger than the sum of its proper divisors (1).

13240223 is an equidigital number, since it uses as much as digits as its factorization.

13240223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 13240223 is about 3638.7117225744. The cubic root of 13240223 is about 236.5729578973.

Adding to 13240223 its reverse (32204231), we get a palindrome (45444454).

The spelling of 13240223 in words is "thirteen million, two hundred forty thousand, two hundred twenty-three".