131165443111 has 4 divisors (see below), whose sum is σ = 132517664272. Its totient is φ = 129813221952.

The previous prime is 131165443099. The next prime is 131165443133. The reversal of 131165443111 is 111344561131.

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 131165443111 - 2⁷ = 131165442983 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 (131165443711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676110435 + ... + 676110628.

It is an arithmetic number, because the mean of its divisors is an integer number (33129416068).

Almost surely, 2^131165443111 is an apocalyptic number.

131165443111 is a deficient number, since it is larger than the sum of its proper divisors (1352221161).

131165443111 is an equidigital number, since it uses as much as digits as its factorization.

131165443111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352221160.

The product of its digits is 4320, while the sum is 31.

The spelling of 131165443111 in words is "one hundred thirty-one billion, one hundred sixty-five million, four hundred forty-three thousand, one hundred eleven".