100100919091 has 8 divisors (see below), whose sum is σ = 102212847504. Its totient is φ = 98009009280.

The previous prime is 100100919047. The next prime is 100100919131. The reversal of 100100919091 is 190919001001.

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

It is a cyclic number.

It is not a de Polignac number, because 100100919091 - 2¹¹ = 100100917043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100100919011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4994545 + ... + 5014546.

It is an arithmetic number, because the mean of its divisors is an integer number (12776605938).

Almost surely, 2^100100919091 is an apocalyptic number.

100100919091 is a deficient number, since it is larger than the sum of its proper divisors (2111928413).

100100919091 is a wasteful number, since it uses less digits than its factorization.

100100919091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10009301.

The product of its (nonzero) digits is 729, while the sum is 31.

It can be divided in two parts, 1001009 and 19091, that added together give a square (1020100 = 1010²).

The spelling of 100100919091 in words is "one hundred billion, one hundred million, nine hundred nineteen thousand, ninety-one".