111123410140241 has 4 divisors (see below), whose sum is σ = 111126013275300. Its totient is φ = 111120807005184.

The previous prime is 111123410140219. The next prime is 111123410140321. The reversal of 111123410140241 is 142041014321111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 76730522083216 + 34392888057025 = 8759596^2 + 5864545^2 .

It is a cyclic number.

It is not a de Polignac number, because 111123410140241 - 2⁶ = 111123410140177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 111123410140241.

It is not an unprimeable number, because it can be changed into a prime (111123410440241) 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, 1301503496 + ... + 1301588873.

It is an arithmetic number, because the mean of its divisors is an integer number (27781503318825).

Almost surely, 2^{111123410140241} is an apocalyptic number.

It is an amenable number.

111123410140241 is a deficient number, since it is larger than the sum of its proper divisors (2603135059).

111123410140241 is an equidigital number, since it uses as much as digits as its factorization.

111123410140241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2603135058.

The product of its (nonzero) digits is 768, while the sum is 26.

Adding to 111123410140241 its reverse (142041014321111), we get a palindrome (253164424461352).

The spelling of 111123410140241 in words is "one hundred eleven trillion, one hundred twenty-three billion, four hundred ten million, one hundred forty thousand, two hundred forty-one".