111011053543 has 8 divisors (see below), whose sum is σ = 119627071200. Its totient is φ = 102405993888.

The previous prime is 111011053519. The next prime is 111011053577. The reversal of 111011053543 is 345350110111.

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 111011053543 - 2²⁹ = 110474182631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111011033543) 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 7 ways as a sum of consecutive naturals, for example, 2718448 + ... + 2758981.

It is an arithmetic number, because the mean of its divisors is an integer number (14953383900).

Almost surely, 2^111011053543 is an apocalyptic number.

111011053543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111011053543 is a deficient number, since it is larger than the sum of its proper divisors (8616017657).

111011053543 is a wasteful number, since it uses less digits than its factorization.

111011053543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5479001.

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 111011053543 its reverse (345350110111), we get a palindrome (456361163654).

The spelling of 111011053543 in words is "one hundred eleven billion, eleven million, fifty-three thousand, five hundred forty-three".