111353530243 has 4 divisors (see below), whose sum is σ = 111354247368. Its totient is φ = 111352813120.

The previous prime is 111353530241. The next prime is 111353530307. The reversal of 111353530243 is 342035353111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 111353530243 - 2¹ = 111353530241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111353530241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17518 + ... + 472243.

It is an arithmetic number, because the mean of its divisors is an integer number (27838561842).

Almost surely, 2^111353530243 is an apocalyptic number.

111353530243 is a deficient number, since it is larger than the sum of its proper divisors (717125).

111353530243 is an equidigital number, since it uses as much as digits as its factorization.

111353530243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717124.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 111353530243 its reverse (342035353111), we get a palindrome (453388883354).

The spelling of 111353530243 in words is "one hundred eleven billion, three hundred fifty-three million, five hundred thirty thousand, two hundred forty-three".