1323311120 has 20 divisors (see below), whose sum is σ = 3076698540. Its totient is φ = 529324416.

The previous prime is 1323311117. The next prime is 1323311137. The reversal of 1323311120 is 211133231.

It can be written as a sum of positive squares in 2 ways, for example, as 1050797056 + 272514064 = 32416^2 + 16508^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8270615 + ... + 8270774.

It is an arithmetic number, because the mean of its divisors is an integer number (153834927).

Almost surely, 2^1323311120 is an apocalyptic number.

1323311120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323311120 is an abundant number, since it is smaller than the sum of its proper divisors (1753387420).

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

1323311120 is a wasteful number, since it uses less digits than its factorization.

1323311120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16541402 (or 16541396 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1323311120 is about 36377.3434983920. The cubic root of 1323311120 is about 1097.8777594136.

Adding to 1323311120 its reverse (211133231), we get a palindrome (1534444351).

The spelling of 1323311120 in words is "one billion, three hundred twenty-three million, three hundred eleven thousand, one hundred twenty".