10001010091 has 4 divisors (see below), whose sum is σ = 10001314512. Its totient is φ = 10000705672.

The previous prime is 10001010079. The next prime is 10001010113. The reversal of 10001010091 is 19001010001.

10001010091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19001010001 = 167 ⋅113778503.

It is a cyclic number.

It is not a de Polignac number, because 10001010091 - 2³³ = 1411075499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10001010191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96016 + ... + 170941.

It is an arithmetic number, because the mean of its divisors is an integer number (2500328628).

Almost surely, 2^10001010091 is an apocalyptic number.

10001010091 is a deficient number, since it is larger than the sum of its proper divisors (304421).

10001010091 is an equidigital number, since it uses as much as digits as its factorization.

10001010091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304420.

The product of its (nonzero) digits is 9, while the sum is 13.

Adding to 10001010091 its reverse (19001010001), we get a palindrome (29002020092).

The spelling of 10001010091 in words is "ten billion, one million, ten thousand, ninety-one".