1109689357111 has 4 divisors (see below), whose sum is σ = 1109691774000. Its totient is φ = 1109686940224.

The previous prime is 1109689357099. The next prime is 1109689357141. The reversal of 1109689357111 is 1117539869011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1109689357111 - 2¹⁹ = 1109688832823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109689357141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284011 + ... + 1516588.

It is an arithmetic number, because the mean of its divisors is an integer number (277422943500).

Almost surely, 2^{1109689357111} is an apocalyptic number.

1109689357111 is a deficient number, since it is larger than the sum of its proper divisors (2416889).

1109689357111 is an equidigital number, since it uses as much as digits as its factorization.

1109689357111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416888.

The product of its (nonzero) digits is 408240, while the sum is 52.

The spelling of 1109689357111 in words is "one trillion, one hundred nine billion, six hundred eighty-nine million, three hundred fifty-seven thousand, one hundred eleven".