1317131737120 has 48 divisors (see below), whose sum is σ = 3187619445528. Its totient is φ = 514002626560.

The previous prime is 1317131737093. The next prime is 1317131737123. The reversal of 1317131737120 is 217371317131.

It can be written as a sum of positive squares in 4 ways, for example, as 967335195024 + 349796542096 = 983532^2 + 591436^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1317131737120.

It is not an unprimeable number, because it can be changed into a prime (1317131737123) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 100384579 + ... + 100397698.

Almost surely, 2^{1317131737120} is an apocalyptic number.

1317131737120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1317131737120 is an abundant number, since it is smaller than the sum of its proper divisors (1870487708408).

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

1317131737120 is a wasteful number, since it uses less digits than its factorization.

1317131737120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200782333 (or 200782325 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 37.

The spelling of 1317131737120 in words is "one trillion, three hundred seventeen billion, one hundred thirty-one million, seven hundred thirty-seven thousand, one hundred twenty".