1323220163 has 2 divisors, whose sum is σ = 1323220164. Its totient is φ = 1323220162.

The previous prime is 1323220141. The next prime is 1323220181. The reversal of 1323220163 is 3610223231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1323220163 - 2⁶ = 1323220099 is a prime.

It is not a weakly prime, because it can be changed into another prime (1323220133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661610081 + 661610082.

It is an arithmetic number, because the mean of its divisors is an integer number (661610082).

Almost surely, 2^1323220163 is an apocalyptic number.

1323220163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323220163 is an equidigital number, since it uses as much as digits as its factorization.

1323220163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 1323220163 is about 36376.0932894119. The cubic root of 1323220163 is about 1097.8526048465.

Adding to 1323220163 its reverse (3610223231), we get a palindrome (4933443394).

The spelling of 1323220163 in words is "one billion, three hundred twenty-three million, two hundred twenty thousand, one hundred sixty-three".