11932103809 has 4 divisors (see below), whose sum is σ = 11940151216. Its totient is φ = 11924056404.

The previous prime is 11932103801. The next prime is 11932103851. The reversal of 11932103809 is 90830123911.

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, and also an emirpimes, since its reverse is a distinct semiprime: 90830123911 = 14947 ⋅6076813.

It is a cyclic number.

It is not a de Polignac number, because 11932103809 - 2³ = 11932103801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11932103801) 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, 4021479 + ... + 4024444.

It is an arithmetic number, because the mean of its divisors is an integer number (2985037804).

Almost surely, 2^11932103809 is an apocalyptic number.

It is an amenable number.

11932103809 is a deficient number, since it is larger than the sum of its proper divisors (8047407).

11932103809 is an equidigital number, since it uses as much as digits as its factorization.

11932103809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8047406.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 11932103809 in words is "eleven billion, nine hundred thirty-two million, one hundred three thousand, eight hundred nine".