109191010999 has 8 divisors (see below), whose sum is σ = 132130299168. Its totient is φ = 88086865920.

The previous prime is 109191010997. The next prime is 109191011021. The reversal of 109191010999 is 999010191901.

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 109191010999 - 2¹ = 109191010997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109191010993) 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, 458785642 + ... + 458785879.

It is an arithmetic number, because the mean of its divisors is an integer number (16516287396).

Almost surely, 2^109191010999 is an apocalyptic number.

109191010999 is a deficient number, since it is larger than the sum of its proper divisors (22939288169).

109191010999 is an equidigital number, since it uses as much as digits as its factorization.

109191010999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917571545.

The product of its (nonzero) digits is 59049, while the sum is 49.

The spelling of 109191010999 in words is "one hundred nine billion, one hundred ninety-one million, ten thousand, nine hundred ninety-nine".