1131187196159 has 4 divisors (see below), whose sum is σ = 1131205601304. Its totient is φ = 1131168791016.

The previous prime is 1131187196137. The next prime is 1131187196171. The reversal of 1131187196159 is 9516917811311.

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 1131187196159 - 2²⁰ = 1131186147583 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 1131187196159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131187196179) 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, 9110072 + ... + 9233405.

It is an arithmetic number, because the mean of its divisors is an integer number (282801400326).

Almost surely, 2^{1131187196159} is an apocalyptic number.

1131187196159 is a deficient number, since it is larger than the sum of its proper divisors (18405145).

1131187196159 is an equidigital number, since it uses as much as digits as its factorization.

1131187196159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18405144.

The product of its digits is 408240, while the sum is 53.

The spelling of 1131187196159 in words is "one trillion, one hundred thirty-one billion, one hundred eighty-seven million, one hundred ninety-six thousand, one hundred fifty-nine".