1317658314243 has 8 divisors (see below), whose sum is σ = 1756885337856. Its totient is φ = 878435083400.

The previous prime is 1317658314239. The next prime is 1317658314281. The reversal of 1317658314243 is 3424138567131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1317658314243 - 2² = 1317658314239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1317658314192 and 1317658314201.

It is not an unprimeable number, because it can be changed into a prime (1317658314233) 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, 2943 + ... + 1623368.

It is an arithmetic number, because the mean of its divisors is an integer number (219610667232).

Almost surely, 2^{1317658314243} is an apocalyptic number.

1317658314243 is a deficient number, since it is larger than the sum of its proper divisors (439227023613).

1317658314243 is a wasteful number, since it uses less digits than its factorization.

1317658314243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896385.

The product of its digits is 1451520, while the sum is 48.

The spelling of 1317658314243 in words is "one trillion, three hundred seventeen billion, six hundred fifty-eight million, three hundred fourteen thousand, two hundred forty-three".