131771662111 has 4 divisors (see below), whose sum is σ = 131798282224. Its totient is φ = 131745042000.

The previous prime is 131771662081. The next prime is 131771662133. The reversal of 131771662111 is 111266177131.

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 131771662111 - 2²⁵ = 131738107679 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 (131771665111) 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, 13302630 + ... + 13312531.

It is an arithmetic number, because the mean of its divisors is an integer number (32949570556).

Almost surely, 2^131771662111 is an apocalyptic number.

131771662111 is a deficient number, since it is larger than the sum of its proper divisors (26620113).

131771662111 is an equidigital number, since it uses as much as digits as its factorization.

131771662111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26620112.

The product of its digits is 10584, while the sum is 37.

The spelling of 131771662111 in words is "one hundred thirty-one billion, seven hundred seventy-one million, six hundred sixty-two thousand, one hundred eleven".