317789378101 has 4 divisors (see below), whose sum is σ = 342234714892. Its totient is φ = 293344041312.

The previous prime is 317789378087. The next prime is 317789378113. The reversal of 317789378101 is 101873987713.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98250275601 + 219539102500 = 313449^2 + 468550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317789378101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317789378171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12222668376 + ... + 12222668401.

It is an arithmetic number, because the mean of its divisors is an integer number (85558678723).

Almost surely, 2^317789378101 is an apocalyptic number.

It is an amenable number.

317789378101 is a deficient number, since it is larger than the sum of its proper divisors (24445336791).

317789378101 is a wasteful number, since it uses less digits than its factorization.

317789378101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24445336790.

The product of its (nonzero) digits is 1778112, while the sum is 55.

The spelling of 317789378101 in words is "three hundred seventeen billion, seven hundred eighty-nine million, three hundred seventy-eight thousand, one hundred one".