1311033320000 has 70 divisors (see below), whose sum is σ = 3250936646958. Its totient is φ = 524413312000.

The previous prime is 1311033319997. The next prime is 1311033320033. The reversal of 1311033320000 is 233301131.

It can be written as a sum of positive squares in 5 ways, for example, as 122270507584 + 1188762812416 = 349672^2 + 1090304^2 .

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 16347917 + ... + 16427916.

Almost surely, 2^{1311033320000} is an apocalyptic number.

1311033320000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311033320000 is an abundant number, since it is smaller than the sum of its proper divisors (1939903326958).

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

1311033320000 is an frugal number, since it uses more digits than its factorization.

1311033320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32775865 (or 32775840 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 1311033320000 its reverse (233301131), we get a palindrome (1311266621131).

The spelling of 1311033320000 in words is "one trillion, three hundred eleven billion, thirty-three million, three hundred twenty thousand".