11316517871 has 4 divisors (see below), whose sum is σ = 11592530544. Its totient is φ = 11040505200.

The previous prime is 11316517867. The next prime is 11316517873. The reversal of 11316517871 is 17871561311.

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

It is a cyclic number.

It is not a de Polignac number, because 11316517871 - 2² = 11316517867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 276012631 = 11316517871 / (1 + 1 + 3 + 1 + 6 + 5 + 1 + 7 + 8 + 7 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11316517873) 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, 138006275 + ... + 138006356.

It is an arithmetic number, because the mean of its divisors is an integer number (2898132636).

Almost surely, 2^11316517871 is an apocalyptic number.

11316517871 is a deficient number, since it is larger than the sum of its proper divisors (276012673).

11316517871 is an equidigital number, since it uses as much as digits as its factorization.

11316517871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276012672.

The product of its digits is 35280, while the sum is 41.

The spelling of 11316517871 in words is "eleven billion, three hundred sixteen million, five hundred seventeen thousand, eight hundred seventy-one".