100118123187 has 8 divisors (see below), whose sum is σ = 137796986880. Its totient is φ = 64592337480.

The previous prime is 100118123153. The next prime is 100118123197. The reversal of 100118123187 is 781321811001.

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

It is not a de Polignac number, because 100118123187 - 2²² = 100113928883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100118123197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538269387 + ... + 538269572.

It is an arithmetic number, because the mean of its divisors is an integer number (17224623360).

Almost surely, 2^100118123187 is an apocalyptic number.

100118123187 is a deficient number, since it is larger than the sum of its proper divisors (37678863693).

100118123187 is a wasteful number, since it uses less digits than its factorization.

100118123187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076538993.

The product of its (nonzero) digits is 2688, while the sum is 33.

Adding to 100118123187 its reverse (781321811001), we get a palindrome (881439934188).

The spelling of 100118123187 in words is "one hundred billion, one hundred eighteen million, one hundred twenty-three thousand, one hundred eighty-seven".