101118 has 16 divisors (see below), whose sum is σ = 213120. Its totient is φ = 31896.

The previous prime is 101117. The next prime is 101119. The reversal of 101118 is 811101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (101117) and next prime (101119).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330 + ... + 557.

It is an arithmetic number, because the mean of its divisors is an integer number (13320).

2¹⁰¹¹¹⁸ is an apocalyptic number.

101118 is an abundant number, since it is smaller than the sum of its proper divisors (112002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101118 is a wasteful number, since it uses less digits than its factorization.

101118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911.

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

The square root of 101118 is about 317.9905658978. The cubic root of 101118 is about 46.5882242283.

Adding to 101118 its reverse (811101), we get a palindrome (912219).

It can be divided in two parts, 10 and 1118, that added together give a triangular number (1128 = T₄₇).

The spelling of 101118 in words is "one hundred one thousand, one hundred eighteen".