11243210856 has 64 divisors (see below), whose sum is σ = 28365297600. Its totient is φ = 3713568768.

The previous prime is 11243210827. The next prime is 11243210857. The reversal of 11243210856 is 65801234211.

It is not an unprimeable number, because it can be changed into a prime (11243210857) 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, 1424136 + ... + 1432008.

It is an arithmetic number, because the mean of its divisors is an integer number (443207775).

Almost surely, 2^11243210856 is an apocalyptic number.

It is an amenable number.

11243210856 is an abundant number, since it is smaller than the sum of its proper divisors (17122086744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11243210856 is a wasteful number, since it uses less digits than its factorization.

11243210856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8418 (or 8414 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 11243210856 in words is "eleven billion, two hundred forty-three million, two hundred ten thousand, eight hundred fifty-six".