1223333173 has 2 divisors, whose sum is σ = 1223333174. Its totient is φ = 1223333172.

The previous prime is 1223333159. The next prime is 1223333201. The reversal of 1223333173 is 3713333221.

It is an a-pointer prime, because the next prime (1223333201) can be obtained adding 1223333173 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 919423684 + 303909489 = 30322^2 + 17433^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223333173 - 2⁹ = 1223332661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223333123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611666586 + 611666587.

It is an arithmetic number, because the mean of its divisors is an integer number (611666587).

Almost surely, 2^1223333173 is an apocalyptic number.

It is an amenable number.

1223333173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223333173 is an equidigital number, since it uses as much as digits as its factorization.

1223333173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 28.

The square root of 1223333173 is about 34976.1800801631. The cubic root of 1223333173 is about 1069.5019585111.

Adding to 1223333173 its reverse (3713333221), we get a palindrome (4936666394).

The spelling of 1223333173 in words is "one billion, two hundred twenty-three million, three hundred thirty-three thousand, one hundred seventy-three".