100123985854 has 32 divisors (see below), whose sum is σ = 161152588800. Its totient is φ = 46516485600.

The previous prime is 100123985839. The next prime is 100123985867. The reversal of 100123985854 is 458589321001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342864 + ... + 563740.

It is an arithmetic number, because the mean of its divisors is an integer number (5036018400).

Almost surely, 2^100123985854 is an apocalyptic number.

100123985854 is a deficient number, since it is larger than the sum of its proper divisors (61028602946).

100123985854 is a wasteful number, since it uses less digits than its factorization.

100123985854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221128.

The product of its (nonzero) digits is 345600, while the sum is 46.

The spelling of 100123985854 in words is "one hundred billion, one hundred twenty-three million, nine hundred eighty-five thousand, eight hundred fifty-four".