1311056530404 has 96 divisors (see below), whose sum is σ = 3235735278720. Its totient is φ = 412523424768.

The previous prime is 1311056530369. The next prime is 1311056530411. The reversal of 1311056530404 is 4040356501131.

It is a happy number.

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 31 ways as a sum of consecutive naturals, for example, 5094064 + ... + 5345240.

It is an arithmetic number, because the mean of its divisors is an integer number (33705575820).

Almost surely, 2^{1311056530404} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1311056530404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1617867639360).

1311056530404 is an abundant number, since it is smaller than the sum of its proper divisors (1924678748316).

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

1311056530404 is a wasteful number, since it uses less digits than its factorization.

1311056530404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251549 (or 251547 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 1311056530404 in words is "one trillion, three hundred eleven billion, fifty-six million, five hundred thirty thousand, four hundred four".