2169318811109 has 4 divisors (see below), whose sum is σ = 2169439621920. Its totient is φ = 2169198000300.

The previous prime is 2169318811091. The next prime is 2169318811123. The reversal of 2169318811109 is 9011188139612.

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 2169318811109 - 2³² = 2165023843813 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 (2169318811199) 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, 60378467 + ... + 60414384.

It is an arithmetic number, because the mean of its divisors is an integer number (542359905480).

Almost surely, 2^{2169318811109} is an apocalyptic number.

It is an amenable number.

2169318811109 is a deficient number, since it is larger than the sum of its proper divisors (120810811).

2169318811109 is a wasteful number, since it uses less digits than its factorization.

2169318811109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120810810.

The product of its (nonzero) digits is 186624, while the sum is 50.

The spelling of 2169318811109 in words is "two trillion, one hundred sixty-nine billion, three hundred eighteen million, eight hundred eleven thousand, one hundred nine".