118091101 has 4 divisors (see below), whose sum is σ = 118171900. Its totient is φ = 118010304.

The previous prime is 118091063. The next prime is 118091107. The reversal of 118091101 is 101190811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101190811 = 167 ⋅605933.

It can be written as a sum of positive squares in 2 ways, for example, as 68459076 + 49632025 = 8274^2 + 7045^2 .

It is a cyclic number.

It is not a de Polignac number, because 118091101 - 2⁹ = 118090589 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 (118091107) 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, 38166 + ... + 41143.

It is an arithmetic number, because the mean of its divisors is an integer number (29542975).

Almost surely, 2^118091101 is an apocalyptic number.

It is an amenable number.

118091101 is a deficient number, since it is larger than the sum of its proper divisors (80799).

118091101 is an equidigital number, since it uses as much as digits as its factorization.

118091101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80798.

The product of its (nonzero) digits is 72, while the sum is 22.

The square root of 118091101 is about 10866.9729455815. The cubic root of 118091101 is about 490.6130062169.

The spelling of 118091101 in words is "one hundred eighteen million, ninety-one thousand, one hundred one".