42440011221103 has 4 divisors (see below), whose sum is σ = 42521469976368. Its totient is φ = 42358552465840.

The previous prime is 42440011221067. The next prime is 42440011221119. The reversal of 42440011221103 is 30112211004424.

42440011221103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42440011221103 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 (42440011221173) 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, 40729376851 + ... + 40729377892.

It is an arithmetic number, because the mean of its divisors is an integer number (10630367494092).

Almost surely, 2^{42440011221103} is an apocalyptic number.

42440011221103 is a deficient number, since it is larger than the sum of its proper divisors (81458755265).

42440011221103 is an equidigital number, since it uses as much as digits as its factorization.

42440011221103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81458755264.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 42440011221103 its reverse (30112211004424), we get a palindrome (72552222225527).

The spelling of 42440011221103 in words is "forty-two trillion, four hundred forty billion, eleven million, two hundred twenty-one thousand, one hundred three".