1311310321012 has 48 divisors (see below), whose sum is σ = 2518515756288. Its totient is φ = 594943303680.

The previous prime is 1311310321003. The next prime is 1311310321103. The reversal of 1311310321012 is 2101230131131.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2847789 + ... + 3276052.

It is an arithmetic number, because the mean of its divisors is an integer number (52469078256).

Almost surely, 2^{1311310321012} is an apocalyptic number.

It is an amenable number.

1311310321012 is a deficient number, since it is larger than the sum of its proper divisors (1207205435276).

1311310321012 is a wasteful number, since it uses less digits than its factorization.

1311310321012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6123976 (or 6123974 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1311310321012 its reverse (2101230131131), we get a palindrome (3412540452143).

The spelling of 1311310321012 in words is "one trillion, three hundred eleven billion, three hundred ten million, three hundred twenty-one thousand, twelve".