11115134543 has 8 divisors (see below), whose sum is σ = 11375369808. Its totient is φ = 10854978624.

The previous prime is 11115134519. The next prime is 11115134557. The reversal of 11115134543 is 34543151111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11115134543 - 2¹⁸ = 11114872399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11115134573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338321 + ... + 369717.

It is an arithmetic number, because the mean of its divisors is an integer number (1421921226).

Almost surely, 2^11115134543 is an apocalyptic number.

11115134543 is a deficient number, since it is larger than the sum of its proper divisors (260235265).

11115134543 is an equidigital number, since it uses as much as digits as its factorization.

11115134543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39673.

The product of its digits is 3600, while the sum is 29.

Adding to 11115134543 its reverse (34543151111), we get a palindrome (45658285654).

The spelling of 11115134543 in words is "eleven billion, one hundred fifteen million, one hundred thirty-four thousand, five hundred forty-three".