1323312021113 has 4 divisors (see below), whose sum is σ = 1345741038480. Its totient is φ = 1300883003748.

The previous prime is 1323312021061. The next prime is 1323312021211. The reversal of 1323312021113 is 3111202133231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1323312021113 - 2¹² = 1323312017017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323312021313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11214508595 + ... + 11214508712.

It is an arithmetic number, because the mean of its divisors is an integer number (336435259620).

Almost surely, 2^{1323312021113} is an apocalyptic number.

It is an amenable number.

1323312021113 is a deficient number, since it is larger than the sum of its proper divisors (22429017367).

1323312021113 is an equidigital number, since it uses as much as digits as its factorization.

1323312021113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22429017366.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1323312021113 its reverse (3111202133231), we get a palindrome (4434514154344).

The spelling of 1323312021113 in words is "one trillion, three hundred twenty-three billion, three hundred twelve million, twenty-one thousand, one hundred thirteen".