108911001001 has 4 divisors (see below), whose sum is σ = 118812001104. Its totient is φ = 99010000900.

The previous prime is 108911000987. The next prime is 108911001019. The reversal of 108911001001 is 100100119801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 108911001001 - 2⁵ = 108911000969 is a prime.

It is a super-2 number, since 2×108911001001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108911001701) 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 3 ways as a sum of consecutive naturals, for example, 4950500035 + ... + 4950500056.

It is an arithmetic number, because the mean of its divisors is an integer number (29703000276).

Almost surely, 2^108911001001 is an apocalyptic number.

108911001001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

108911001001 is a deficient number, since it is larger than the sum of its proper divisors (9901000103).

108911001001 is an equidigital number, since it uses as much as digits as its factorization.

108911001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9901000102.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 108911001001 in words is "one hundred eight billion, nine hundred eleven million, one thousand, one".