131108101 has 8 divisors (see below), whose sum is σ = 135761400. Its totient is φ = 126463680.

The previous prime is 131108099. The next prime is 131108111. The reversal of 131108101 is 101801131.

It can be written as a sum of positive squares in 4 ways, for example, as 43217476 + 87890625 = 6574^2 + 9375^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131108101 - 2¹ = 131108099 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 (131108111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45615 + ... + 48403.

It is an arithmetic number, because the mean of its divisors is an integer number (16970175).

Almost surely, 2^131108101 is an apocalyptic number.

It is an amenable number.

131108101 is a deficient number, since it is larger than the sum of its proper divisors (4653299).

131108101 is a wasteful number, since it uses less digits than its factorization.

131108101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4439.

The product of its (nonzero) digits is 24, while the sum is 16.

The square root of 131108101 is about 11450.2445825406. The cubic root of 131108101 is about 508.0149687139.

Adding to 131108101 its reverse (101801131), we get a palindrome (232909232).

The spelling of 131108101 in words is "one hundred thirty-one million, one hundred eight thousand, one hundred one".