100001099000 has 64 divisors (see below), whose sum is σ = 255275560800. Its totient is φ = 36364032000.

The previous prime is 100001098999. The next prime is 100001099021. The reversal of 100001099000 is 990100001.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4534505 + ... + 4556504.

Almost surely, 2^100001099000 is an apocalyptic number.

100001099000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100001099000 is an abundant number, since it is smaller than the sum of its proper divisors (155274461800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100001099000 is a wasteful number, since it uses less digits than its factorization.

100001099000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9091041 (or 9091027 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 20.

Adding to 100001099000 its reverse (990100001), we get a palindrome (100991199001).

The spelling of 100001099000 in words is "one hundred billion, one million, ninety-nine thousand".