10091100191 has 8 divisors (see below), whose sum is σ = 10421319168. Its totient is φ = 9761175000.

The previous prime is 10091100181. The next prime is 10091100197. The reversal of 10091100191 is 19100119001.

It is a happy number.

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 10091100191 - 2¹⁰ = 10091099167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10091100197) 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, 2525 + ... + 142086.

It is an arithmetic number, because the mean of its divisors is an integer number (1302664896).

Almost surely, 2^10091100191 is an apocalyptic number.

10091100191 is a deficient number, since it is larger than the sum of its proper divisors (330218977).

10091100191 is a wasteful number, since it uses less digits than its factorization.

10091100191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146893.

The product of its (nonzero) digits is 81, while the sum is 23.

Adding to 10091100191 its reverse (19100119001), we get a palindrome (29191219192).

The spelling of 10091100191 in words is "ten billion, ninety-one million, one hundred thousand, one hundred ninety-one".