11543555552323 has 4 divisors (see below), whose sum is σ = 11627815082040. Its totient is φ = 11459296022608.

The previous prime is 11543555552303. The next prime is 11543555552329. The reversal of 11543555552323 is 32325555534511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11543555552323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11543555552329) 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 3 ways as a sum of consecutive naturals, for example, 42129764653 + ... + 42129764926.

It is an arithmetic number, because the mean of its divisors is an integer number (2906953770510).

Almost surely, 2^{11543555552323} is an apocalyptic number.

11543555552323 is a deficient number, since it is larger than the sum of its proper divisors (84259529717).

11543555552323 is an equidigital number, since it uses as much as digits as its factorization.

11543555552323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84259529716.

The product of its digits is 6750000, while the sum is 49.

The spelling of 11543555552323 in words is "eleven trillion, five hundred forty-three billion, five hundred fifty-five million, five hundred fifty-two thousand, three hundred twenty-three".