1311333320012 has 12 divisors (see below), whose sum is σ = 2294914663440. Its totient is φ = 655643416176.

The previous prime is 1311333319999. The next prime is 1311333320183. The reversal of 1311333320012 is 2100233331131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311333320012.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5683712 + ... + 5909927.

It is an arithmetic number, because the mean of its divisors is an integer number (191242888620).

Almost surely, 2^{1311333320012} is an apocalyptic number.

It is an amenable number.

1311333320012 is a deficient number, since it is larger than the sum of its proper divisors (983581343428).

1311333320012 is a wasteful number, since it uses less digits than its factorization.

1311333320012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11621920 (or 11621918 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1311333320012 its reverse (2100233331131), we get a palindrome (3411566651143).

The spelling of 1311333320012 in words is "one trillion, three hundred eleven billion, three hundred thirty-three million, three hundred twenty thousand, twelve".