111441720450026 has 4 divisors (see below), whose sum is σ = 167162580675042. Its totient is φ = 55720860225012.

The previous prime is 111441720450001. The next prime is 111441720450079. The reversal of 111441720450026 is 620054027144111.

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

It can be written as a sum of positive squares in only one way, i.e., 110560283005225 + 881437444801 = 10514765^2 + 938849^2 .

It is a Curzon number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 27860430112505 + ... + 27860430112508.

Almost surely, 2^{111441720450026} is an apocalyptic number.

111441720450026 is a deficient number, since it is larger than the sum of its proper divisors (55720860225016).

111441720450026 is an equidigital number, since it uses as much as digits as its factorization.

111441720450026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55720860225015.

The product of its (nonzero) digits is 53760, while the sum is 38.

Adding to 111441720450026 its reverse (620054027144111), we get a palindrome (731495747594137).

The spelling of 111441720450026 in words is "one hundred eleven trillion, four hundred forty-one billion, seven hundred twenty million, four hundred fifty thousand, twenty-six".