1311445533504 has 112 divisors (see below), whose sum is σ = 3800665195200. Its totient is φ = 397246488576.

The previous prime is 1311445533469. The next prime is 1311445533553. The reversal of 1311445533504 is 4053355441131.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 6832774 + ... + 7022085.

Almost surely, 2^{1311445533504} is an apocalyptic number.

It is an amenable number.

1311445533504 is an abundant number, since it is smaller than the sum of its proper divisors (2489219661696).

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

1311445533504 is a wasteful number, since it uses less digits than its factorization.

1311445533504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13854920 (or 13854910 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 1311445533504 in words is "one trillion, three hundred eleven billion, four hundred forty-five million, five hundred thirty-three thousand, five hundred four".