1323321212101 has 48 divisors (see below), whose sum is σ = 1602494461440. Its totient is φ = 1089002154240.

The previous prime is 1323321212077. The next prime is 1323321212113. The reversal of 1323321212101 is 1012121233231.

It is not a de Polignac number, because 1323321212101 - 2⁷ = 1323321211973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323321212501) 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 47 ways as a sum of consecutive naturals, for example, 20030415 + ... + 20096371.

It is an arithmetic number, because the mean of its divisors is an integer number (33385301280).

Almost surely, 2^{1323321212101} is an apocalyptic number.

It is an amenable number.

1323321212101 is a deficient number, since it is larger than the sum of its proper divisors (279173249339).

1323321212101 is an equidigital number, since it uses as much as digits as its factorization.

1323321212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66194 (or 66187 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1323321212101 its reverse (1012121233231), we get a palindrome (2335442445332).

The spelling of 1323321212101 in words is "one trillion, three hundred twenty-three billion, three hundred twenty-one million, two hundred twelve thousand, one hundred one".