1323120311112 has 64 divisors (see below), whose sum is σ = 3525883344000. Its totient is φ = 412310666240.

The previous prime is 1323120311111. The next prime is 1323120311113. The reversal of 1323120311112 is 2111130213231.

It is an interprime number because it is at equal distance from previous prime (1323120311111) and next prime (1323120311113).

It is not an unprimeable number, because it can be changed into a prime (1323120311111) 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, 10821564 + ... + 10943147.

It is an arithmetic number, because the mean of its divisors is an integer number (55091927250).

Almost surely, 2^{1323120311112} is an apocalyptic number.

1323120311112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1323120311112 is an abundant number, since it is smaller than the sum of its proper divisors (2202763032888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323120311112 is a wasteful number, since it uses less digits than its factorization.

1323120311112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21764886 (or 21764882 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1323120311112 its reverse (2111130213231), we get a palindrome (3434250524343).

The spelling of 1323120311112 in words is "one trillion, three hundred twenty-three billion, one hundred twenty million, three hundred eleven thousand, one hundred twelve".