118101 has 4 divisors (see below), whose sum is σ = 157472. Its totient is φ = 78732.

The previous prime is 118093. The next prime is 118127. The reversal of 118101 is 101811.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 101811 = 3 ⋅33937.

It is not a de Polignac number, because 118101 - 2³ = 118093 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 118101.

It is not an unprimeable number, because it can be changed into a prime (118171) 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, 19681 + ... + 19686.

It is an arithmetic number, because the mean of its divisors is an integer number (39368).

2¹¹⁸¹⁰¹ is an apocalyptic number.

It is an amenable number.

118101 is a deficient number, since it is larger than the sum of its proper divisors (39371).

118101 is an equidigital number, since it uses as much as digits as its factorization.

118101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39370.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 118101 is about 343.6582604856. The cubic root of 118101 is about 49.0626714398.

Adding to 118101 its reverse (101811), we get a palindrome (219912).

Subtracting from 118101 its reverse (101811), we obtain a triangular number (16290 = T₁₈₀).

It can be divided in two parts, 11810 and 1, that added together give a palindrome (11811).

The spelling of 118101 in words is "one hundred eighteen thousand, one hundred one".