109523871911 has 4 divisors (see below), whose sum is σ = 109530907824. Its totient is φ = 109516836000.

The previous prime is 109523871901. The next prime is 109523871923. The reversal of 109523871911 is 119178325901.

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 109523871911 - 2²⁶ = 109456763047 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 (109523871901) 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, 3494555 + ... + 3525756.

It is an arithmetic number, because the mean of its divisors is an integer number (27382726956).

Almost surely, 2^109523871911 is an apocalyptic number.

109523871911 is a deficient number, since it is larger than the sum of its proper divisors (7035913).

109523871911 is an equidigital number, since it uses as much as digits as its factorization.

109523871911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7035912.

The product of its (nonzero) digits is 136080, while the sum is 47.

The spelling of 109523871911 in words is "one hundred nine billion, five hundred twenty-three million, eight hundred seventy-one thousand, nine hundred eleven".