11243170913 has 16 divisors (see below), whose sum is σ = 12503346240. Its totient is φ = 10043901504.

The previous prime is 11243170889. The next prime is 11243170973. The reversal of 11243170913 is 31907134211.

It is not a de Polignac number, because 11243170913 - 2¹² = 11243166817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11243170913.

It is not an unprimeable number, because it can be changed into a prime (11243170973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31331 + ... + 153192.

It is an arithmetic number, because the mean of its divisors is an integer number (781459140).

Almost surely, 2^11243170913 is an apocalyptic number.

11243170913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11243170913 is a deficient number, since it is larger than the sum of its proper divisors (1260175327).

11243170913 is a wasteful number, since it uses less digits than its factorization.

11243170913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184688.

The product of its (nonzero) digits is 4536, while the sum is 32.

The spelling of 11243170913 in words is "eleven billion, two hundred forty-three million, one hundred seventy thousand, nine hundred thirteen".