131101109 has 4 divisors (see below), whose sum is σ = 134150016. Its totient is φ = 128052204.

The previous prime is 131101079. The next prime is 131101133. The reversal of 131101109 is 901101131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131101109 - 2¹⁶ = 131035573 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 (131101309) 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, 1524389 + ... + 1524474.

It is an arithmetic number, because the mean of its divisors is an integer number (33537504).

Almost surely, 2^131101109 is an apocalyptic number.

It is an amenable number.

131101109 is a deficient number, since it is larger than the sum of its proper divisors (3048907).

131101109 is an equidigital number, since it uses as much as digits as its factorization.

131101109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048906.

The product of its (nonzero) digits is 27, while the sum is 17.

The square root of 131101109 is about 11449.9392574808. The cubic root of 131101109 is about 508.0059377341.

The spelling of 131101109 in words is "one hundred thirty-one million, one hundred one thousand, one hundred nine".