10091009100 has 36 divisors (see below), whose sum is σ = 29196653864. Its totient is φ = 2690935680.

The previous prime is 10091009021. The next prime is 10091009101. The reversal of 10091009100 is 190019001.

It is not an unprimeable number, because it can be changed into a prime (10091009101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16818049 + ... + 16818648.

Almost surely, 2^10091009100 is an apocalyptic number.

10091009100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10091009100 is an abundant number, since it is smaller than the sum of its proper divisors (19105644764).

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

10091009100 is a wasteful number, since it uses less digits than its factorization.

10091009100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33636714 (or 33636707 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 21.

Subtracting from 10091009100 its reverse (190019001), we obtain a palindrome (9900990099).

The spelling of 10091009100 in words is "ten billion, ninety-one million, nine thousand, one hundred".