11243543031105 has 64 divisors (see below), whose sum is σ = 22571536232448. Its totient is φ = 4642879138560.

The previous prime is 11243543031101. The next prime is 11243543031169. The reversal of 11243543031105 is 50113034534211.

It is not a de Polignac number, because 11243543031105 - 2² = 11243543031101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (11243543031101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30820797 + ... + 31183466.

It is an arithmetic number, because the mean of its divisors is an integer number (352680253632).

Almost surely, 2^{11243543031105} is an apocalyptic number.

11243543031105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11243543031105 is an abundant number, since it is smaller than the sum of its proper divisors (11327993201343).

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

11243543031105 is a wasteful number, since it uses less digits than its factorization.

11243543031105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62004446.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 11243543031105 its reverse (50113034534211), we get a palindrome (61356577565316).

The spelling of 11243543031105 in words is "eleven trillion, two hundred forty-three billion, five hundred forty-three million, thirty-one thousand, one hundred five".