1009191111093 has 16 divisors (see below), whose sum is σ = 1631015937600. Its totient is φ = 611630976240.

The previous prime is 1009191111079. The next prime is 1009191111109. The reversal of 1009191111093 is 3901111919001.

It is not a de Polignac number, because 1009191111093 - 2⁴ = 1009191111077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009191111023) 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 15 ways as a sum of consecutive naturals, for example, 1698974638 + ... + 1698975231.

It is an arithmetic number, because the mean of its divisors is an integer number (101938496100).

Almost surely, 2^{1009191111093} is an apocalyptic number.

It is an amenable number.

1009191111093 is a deficient number, since it is larger than the sum of its proper divisors (621824826507).

1009191111093 is a wasteful number, since it uses less digits than its factorization.

1009191111093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3397949889 (or 3397949883 counting only the distinct ones).

The product of its (nonzero) digits is 2187, while the sum is 36.

The spelling of 1009191111093 in words is "one trillion, nine billion, one hundred ninety-one million, one hundred eleven thousand, ninety-three".