11805012236 has 12 divisors (see below), whose sum is σ = 20662760328. Its totient is φ = 5901366432.

The previous prime is 11805012217. The next prime is 11805012259. The reversal of 11805012236 is 63221050811.

It is a junction number, because it is equal to n+sod(n) for n = 11805012199 and 11805012208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261401 + ... + 303216.

It is an arithmetic number, because the mean of its divisors is an integer number (1721896694).

Almost surely, 2^11805012236 is an apocalyptic number.

It is an amenable number.

11805012236 is a deficient number, since it is larger than the sum of its proper divisors (8857748092).

11805012236 is a wasteful number, since it uses less digits than its factorization.

11805012236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569848 (or 569846 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The spelling of 11805012236 in words is "eleven billion, eight hundred five million, twelve thousand, two hundred thirty-six".