100100910091 has 8 divisors (see below), whose sum is σ = 123201120224. Its totient is φ = 79200720000.

The previous prime is 100100910089. The next prime is 100100910097. The reversal of 100100910091 is 190019001001.

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 100100910091 - 2¹ = 100100910089 is a prime.

100100910091 is a modest number, since divided by 910091 gives 1001 as remainder.

It is not an unprimeable number, because it can be changed into a prime (100100910097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550004910 + ... + 550005091.

It is an arithmetic number, because the mean of its divisors is an integer number (15400140028).

Almost surely, 2^100100910091 is an apocalyptic number.

100100910091 is a deficient number, since it is larger than the sum of its proper divisors (23100210133).

100100910091 is a wasteful number, since it uses less digits than its factorization.

100100910091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100010021.

The product of its (nonzero) digits is 81, while the sum is 22.

Adding to 100100910091 its reverse (190019001001), we get a palindrome (290119911092).

The spelling of 100100910091 in words is "one hundred billion, one hundred million, nine hundred ten thousand, ninety-one".