100011100985 has 8 divisors (see below), whose sum is σ = 120016359816. Its totient is φ = 80006855040.

The previous prime is 100011100979. The next prime is 100011101039. The reversal of 100011100985 is 589001110001.

It can be written as a sum of positive squares in 4 ways, for example, as 2272333561 + 97738767424 = 47669^2 + 312632^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-100011100985 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15746 + ... + 447515.

It is an arithmetic number, because the mean of its divisors is an integer number (15002044977).

Almost surely, 2^100011100985 is an apocalyptic number.

It is an amenable number.

100011100985 is a deficient number, since it is larger than the sum of its proper divisors (20005258831).

100011100985 is an equidigital number, since it uses as much as digits as its factorization.

100011100985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506443.

The product of its (nonzero) digits is 360, while the sum is 26.

Adding to 100011100985 its reverse (589001110001), we get a palindrome (689012210986).

The spelling of 100011100985 in words is "one hundred billion, eleven million, one hundred thousand, nine hundred eighty-five".