131170211 has 4 divisors (see below), whose sum is σ = 131542152. Its totient is φ = 130798272.

The previous prime is 131170201. The next prime is 131170229. The reversal of 131170211 is 112071131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112071131 = 919 ⋅121949.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131170211 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 131170211.

It is not an unprimeable number, because it can be changed into a prime (131170201) 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, 185441 + ... + 186146.

It is an arithmetic number, because the mean of its divisors is an integer number (32885538).

Almost surely, 2^131170211 is an apocalyptic number.

131170211 is a deficient number, since it is larger than the sum of its proper divisors (371941).

131170211 is an equidigital number, since it uses as much as digits as its factorization.

131170211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371940.

The product of its (nonzero) digits is 42, while the sum is 17.

The square root of 131170211 is about 11452.9564305467. The cubic root of 131170211 is about 508.0951768990.

The spelling of 131170211 in words is "one hundred thirty-one million, one hundred seventy thousand, two hundred eleven".