1311200921284 has 12 divisors (see below), whose sum is σ = 2394366899904. Its totient is φ = 627096092744.

The previous prime is 1311200921273. The next prime is 1311200921291. The reversal of 1311200921284 is 4821290021131.

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, 7126091872 + ... + 7126092055.

It is an arithmetic number, because the mean of its divisors is an integer number (199530574992).

Almost surely, 2^{1311200921284} is an apocalyptic number.

It is an amenable number.

1311200921284 is a deficient number, since it is larger than the sum of its proper divisors (1083165978620).

1311200921284 is a wasteful number, since it uses less digits than its factorization.

1311200921284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14252183954 (or 14252183952 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 1311200921284 in words is "one trillion, three hundred eleven billion, two hundred million, nine hundred twenty-one thousand, two hundred eighty-four".