13204123 has 2 divisors, whose sum is σ = 13204124. Its totient is φ = 13204122.

The previous prime is 13204117. The next prime is 13204157. The reversal of 13204123 is 32140231.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (32140231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13204123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13204097 and 13204106.

It is not a weakly prime, because it can be changed into another prime (13204823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6602061 + 6602062.

It is an arithmetic number, because the mean of its divisors is an integer number (6602062).

Almost surely, 2^13204123 is an apocalyptic number.

13204123 is a deficient number, since it is larger than the sum of its proper divisors (1).

13204123 is an equidigital number, since it uses as much as digits as its factorization.

13204123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 13204123 is about 3633.7477898170. The cubic root of 13204123 is about 236.3577536325.

Adding to 13204123 its reverse (32140231), we get a palindrome (45344354).

The spelling of 13204123 in words is "thirteen million, two hundred four thousand, one hundred twenty-three".