13223923 has 2 divisors, whose sum is σ = 13223924. Its totient is φ = 13223922.

The previous prime is 13223893. The next prime is 13223927. The reversal of 13223923 is 32932231.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13223923 is a prime.

It is not a weakly prime, because it can be changed into another prime (13223927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6611961 + 6611962.

It is an arithmetic number, because the mean of its divisors is an integer number (6611962).

Almost surely, 2^13223923 is an apocalyptic number.

13223923 is a deficient number, since it is larger than the sum of its proper divisors (1).

13223923 is an equidigital number, since it uses as much as digits as its factorization.

13223923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 25.

The square root of 13223923 is about 3636.4712290901. The cubic root of 13223923 is about 236.4758366045.

The spelling of 13223923 in words is "thirteen million, two hundred twenty-three thousand, nine hundred twenty-three".