1323323505169 has 2 divisors, whose sum is σ = 1323323505170. Its totient is φ = 1323323505168.

The previous prime is 1323323505137. The next prime is 1323323505199. The reversal of 1323323505169 is 9615053233231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1295271610000 + 28051895169 = 1138100^2 + 167487^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323323505169 - 2⁵ = 1323323505137 is a prime.

It is a super-2 number, since 2×1323323505169² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1323323505199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661661752584 + 661661752585.

It is an arithmetic number, because the mean of its divisors is an integer number (661661752585).

Almost surely, 2^{1323323505169} is an apocalyptic number.

It is an amenable number.

1323323505169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323323505169 is an equidigital number, since it uses as much as digits as its factorization.

1323323505169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 437400, while the sum is 43.

The spelling of 1323323505169 in words is "one trillion, three hundred twenty-three billion, three hundred twenty-three million, five hundred five thousand, one hundred sixty-nine".