100920191100 has 72 divisors (see below), whose sum is σ = 292040193648. Its totient is φ = 26907955200.

The previous prime is 100920191089. The next prime is 100920191101. The reversal of 100920191100 is 1191029001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100920191101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2300572 + ... + 2344028.

Almost surely, 2^100920191100 is an apocalyptic number.

100920191100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100920191100 is an abundant number, since it is smaller than the sum of its proper divisors (191120002548).

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

100920191100 is a wasteful number, since it uses less digits than its factorization.

100920191100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51215 (or 51208 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 24.

The spelling of 100920191100 in words is "one hundred billion, nine hundred twenty million, one hundred ninety-one thousand, one hundred".