1323000121 has 2 divisors, whose sum is σ = 1323000122. Its totient is φ = 1323000120.

The previous prime is 1323000103. The next prime is 1323000127. The reversal of 1323000121 is 1210003231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1155660025 + 167340096 = 33995^2 + 12936^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323000121 - 2⁹ = 1322999609 is a prime.

It is not a weakly prime, because it can be changed into another prime (1323000127) 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, 661500060 + 661500061.

It is an arithmetic number, because the mean of its divisors is an integer number (661500061).

Almost surely, 2^1323000121 is an apocalyptic number.

It is an amenable number.

1323000121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323000121 is an equidigital number, since it uses as much as digits as its factorization.

1323000121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1323000121 is about 36373.0686222650. The cubic root of 1323000121 is about 1097.7917464745.

Adding to 1323000121 its reverse (1210003231), we get a palindrome (2533003352).

The spelling of 1323000121 in words is "one billion, three hundred twenty-three million, one hundred twenty-one", and thus it is an aban number.