1323001321323 has 16 divisors (see below), whose sum is σ = 1928651472000. Its totient is φ = 800033185280.

The previous prime is 1323001321321. The next prime is 1323001321333. The reversal of 1323001321323 is 3231231003231.

It is a cyclic number.

It is not a de Polignac number, because 1323001321323 - 2¹ = 1323001321321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1323001321293 and 1323001321302.

It is not an unprimeable number, because it can be changed into a prime (1323001321321) 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 in 15 ways as a sum of consecutive naturals, for example, 44629893 + ... + 44659526.

It is an arithmetic number, because the mean of its divisors is an integer number (120540717000).

Almost surely, 2^{1323001321323} is an apocalyptic number.

1323001321323 is a deficient number, since it is larger than the sum of its proper divisors (605650150677).

1323001321323 is a wasteful number, since it uses less digits than its factorization.

1323001321323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89289882.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1323001321323 its reverse (3231231003231), we get a palindrome (4554232324554).

The spelling of 1323001321323 in words is "one trillion, three hundred twenty-three billion, one million, three hundred twenty-one thousand, three hundred twenty-three".