1317391201 has 8 divisors (see below), whose sum is σ = 1584831680. Its totient is φ = 1069761168.

The previous prime is 1317391181. The next prime is 1317391219. The reversal of 1317391201 is 1021937131.

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

It is not a de Polignac number, because 1317391201 - 2¹⁵ = 1317358433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1317391201.

It is not an unprimeable number, because it can be changed into a prime (1317391291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4952466 + ... + 4952731.

It is an arithmetic number, because the mean of its divisors is an integer number (198103960).

Almost surely, 2^1317391201 is an apocalyptic number.

It is an amenable number.

1317391201 is a deficient number, since it is larger than the sum of its proper divisors (267440479).

1317391201 is an equidigital number, since it uses as much as digits as its factorization.

1317391201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9905223.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 1317391201 is about 36295.8840779502. The cubic root of 1317391201 is about 1096.2381693428.

The spelling of 1317391201 in words is "one billion, three hundred seventeen million, three hundred ninety-one thousand, two hundred one".