118110821 has 8 divisors (see below), whose sum is σ = 125536320. Its totient is φ = 110806272.

The previous prime is 118110793. The next prime is 118110829. The reversal of 118110821 is 128011811.

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 118110821 - 2¹⁴ = 118094437 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 (118110829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28220 + ... + 32133.

It is an arithmetic number, because the mean of its divisors is an integer number (15692040).

Almost surely, 2^118110821 is an apocalyptic number.

It is an amenable number.

118110821 is a deficient number, since it is larger than the sum of its proper divisors (7425499).

118110821 is a wasteful number, since it uses less digits than its factorization.

118110821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60475.

The product of its (nonzero) digits is 128, while the sum is 23.

The square root of 118110821 is about 10867.8802440954. The cubic root of 118110821 is about 490.6403138066.

The spelling of 118110821 in words is "one hundred eighteen million, one hundred ten thousand, eight hundred twenty-one".