1317857540112 has 360 divisors, whose sum is σ = 3920857799040. Its totient is φ = 412952140800.

The previous prime is 1317857540089. The next prime is 1317857540149. The reversal of 1317857540112 is 2110457587131.

1317857540112 is a `hidden beast` number, since 1 + 3 + 1 + 78 + 575 + 4 + 0 + 1 + 1 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2036873773 + ... + 2036874419.

It is an arithmetic number, because the mean of its divisors is an integer number (10891271664).

Almost surely, 2^{1317857540112} is an apocalyptic number.

1317857540112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1317857540112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1960428899520).

1317857540112 is an abundant number, since it is smaller than the sum of its proper divisors (2603000258928).

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

1317857540112 is a wasteful number, since it uses less digits than its factorization.

1317857540112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123 (or 1083 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 45.

The spelling of 1317857540112 in words is "one trillion, three hundred seventeen billion, eight hundred fifty-seven million, five hundred forty thousand, one hundred twelve".