1131716171811 has 4 divisors (see below), whose sum is σ = 1508954895752. Its totient is φ = 754477447872.

The previous prime is 1131716171809. The next prime is 1131716171821. The reversal of 1131716171811 is 1181716171311.

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

It is not a de Polignac number, because 1131716171811 - 2¹ = 1131716171809 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 1131716171811.

It is not an unprimeable number, because it can be changed into a prime (1131716171821) 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, 188619361966 + ... + 188619361971.

It is an arithmetic number, because the mean of its divisors is an integer number (377238723938).

Almost surely, 2^{1131716171811} is an apocalyptic number.

1131716171811 is a deficient number, since it is larger than the sum of its proper divisors (377238723941).

1131716171811 is an equidigital number, since it uses as much as digits as its factorization.

1131716171811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377238723940.

The product of its digits is 7056, while the sum is 39.

The spelling of 1131716171811 in words is "one trillion, one hundred thirty-one billion, seven hundred sixteen million, one hundred seventy-one thousand, eight hundred eleven".