109391113 has 8 divisors (see below), whose sum is σ = 124006400. Its totient is φ = 95661648.

The previous prime is 109391111. The next prime is 109391123. The reversal of 109391113 is 311193901.

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 109391113 - 2¹ = 109391111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109391111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221193 + ... + 221686.

It is an arithmetic number, because the mean of its divisors is an integer number (15500800).

Almost surely, 2^109391113 is an apocalyptic number.

109391113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

109391113 is a deficient number, since it is larger than the sum of its proper divisors (14615287).

109391113 is a wasteful number, since it uses less digits than its factorization.

109391113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442911.

The product of its (nonzero) digits is 729, while the sum is 28.

The square root of 109391113 is about 10459.0206520496. The cubic root of 109391113 is about 478.2562787763.

The spelling of 109391113 in words is "one hundred nine million, three hundred ninety-one thousand, one hundred thirteen".