11243543031016 has 8 divisors (see below), whose sum is σ = 21081643183170. Its totient is φ = 5621771515504.

The previous prime is 11243543031013. The next prime is 11243543031029. The reversal of 11243543031016 is 61013034534211.

It can be written as a sum of positive squares in only one way, i.e., 6720817742116 + 4522725288900 = 2592454^2 + 2126670^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (11243543031013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702721439431 + ... + 702721439446.

Almost surely, 2^{11243543031016} is an apocalyptic number.

It is an amenable number.

11243543031016 is a deficient number, since it is larger than the sum of its proper divisors (9838100152154).

11243543031016 is a wasteful number, since it uses less digits than its factorization.

11243543031016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405442878883 (or 1405442878879 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 11243543031016 its reverse (61013034534211), we get a palindrome (72256577565227).

The spelling of 11243543031016 in words is "eleven trillion, two hundred forty-three billion, five hundred forty-three million, thirty-one thousand, sixteen".