13223123 has 2 divisors, whose sum is σ = 13223124. Its totient is φ = 13223122.

The previous prime is 13223087. The next prime is 13223173. The reversal of 13223123 is 32132231.

13223123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (32132231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13223123 is a prime.

It is not a weakly prime, because it can be changed into another prime (13223173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6611561 + 6611562.

It is an arithmetic number, because the mean of its divisors is an integer number (6611562).

Almost surely, 2^13223123 is an apocalyptic number.

13223123 is a deficient number, since it is larger than the sum of its proper divisors (1).

13223123 is an equidigital number, since it uses as much as digits as its factorization.

13223123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 17.

The square root of 13223123 is about 3636.3612306810. The cubic root of 13223123 is about 236.4710678611.

Adding to 13223123 its reverse (32132231), we get a palindrome (45355354).

The spelling of 13223123 in words is "thirteen million, two hundred twenty-three thousand, one hundred twenty-three".