1317128601 has 8 divisors (see below), whose sum is σ = 1859475744. Its totient is φ = 826433600.

The previous prime is 1317128587. The next prime is 1317128609. The reversal of 1317128601 is 1068217131.

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 1317128601 - 2⁵ = 1317128569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1317128609) 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, 12912975 + ... + 12913076.

It is an arithmetic number, because the mean of its divisors is an integer number (232434468).

Almost surely, 2^1317128601 is an apocalyptic number.

It is an amenable number.

1317128601 is a deficient number, since it is larger than the sum of its proper divisors (542347143).

1317128601 is a wasteful number, since it uses less digits than its factorization.

1317128601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25826071.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 1317128601 is about 36292.2664075971. The cubic root of 1317128601 is about 1096.1653255607.

The spelling of 1317128601 in words is "one billion, three hundred seventeen million, one hundred twenty-eight thousand, six hundred one".