1323201220313 has 12 divisors (see below), whose sum is σ = 1539372990672. Its totient is φ = 1134070113960.

The previous prime is 1323201220309. The next prime is 1323201220321. The reversal of 1323201220313 is 3130221023231.

It is not a de Polignac number, because 1323201220313 - 2² = 1323201220309 is a prime.

It is a super-2 number, since 2×1323201220313² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323201220813) 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 11 ways as a sum of consecutive naturals, for example, 667595 + ... + 1758432.

It is an arithmetic number, because the mean of its divisors is an integer number (128281082556).

Almost surely, 2^{1323201220313} is an apocalyptic number.

It is an amenable number.

1323201220313 is a deficient number, since it is larger than the sum of its proper divisors (216171770359).

1323201220313 is a wasteful number, since it uses less digits than its factorization.

1323201220313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437172 (or 2437165 counting only the distinct ones).

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

Adding to 1323201220313 its reverse (3130221023231), we get a palindrome (4453422243544).

The spelling of 1323201220313 in words is "one trillion, three hundred twenty-three billion, two hundred one million, two hundred twenty thousand, three hundred thirteen".