191316311311 has 8 divisors (see below), whose sum is σ = 194224893104. Its totient is φ = 188409291840.

The previous prime is 191316311299. The next prime is 191316311323. The reversal of 191316311311 is 113113613191.

It is an interprime number because it is at equal distance from previous prime (191316311299) and next prime (191316311323).

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 191316311311 - 2¹⁹ = 191315787023 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 (191316311341) 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, 142620 + ... + 634801.

It is an arithmetic number, because the mean of its divisors is an integer number (24278111638).

Almost surely, 2^191316311311 is an apocalyptic number.

191316311311 is a deficient number, since it is larger than the sum of its proper divisors (2908581793).

191316311311 is an equidigital number, since it uses as much as digits as its factorization.

191316311311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781161.

The product of its digits is 1458, while the sum is 31.

The spelling of 191316311311 in words is "one hundred ninety-one billion, three hundred sixteen million, three hundred eleven thousand, three hundred eleven".