1323340321043 has 16 divisors (see below), whose sum is σ = 1474428834816. Its totient is φ = 1179471589920.

The previous prime is 1323340320989. The next prime is 1323340321057. The reversal of 1323340321043 is 3401230433231.

It is not a de Polignac number, because 1323340321043 - 2⁶ = 1323340320979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1323340320997 and 1323340321015.

It is not an unprimeable number, because it can be changed into a prime (1323340321243) 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 in 15 ways as a sum of consecutive naturals, for example, 3527705 + ... + 3884762.

It is an arithmetic number, because the mean of its divisors is an integer number (92151802176).

Almost surely, 2^{1323340321043} is an apocalyptic number.

1323340321043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1323340321043 is a deficient number, since it is larger than the sum of its proper divisors (151088513773).

1323340321043 is a wasteful number, since it uses less digits than its factorization.

1323340321043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7412954.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 1323340321043 its reverse (3401230433231), we get a palindrome (4724570754274).

The spelling of 1323340321043 in words is "one trillion, three hundred twenty-three billion, three hundred forty million, three hundred twenty-one thousand, forty-three".