42113403505 has 4 divisors (see below), whose sum is σ = 50536084212. Its totient is φ = 33690722800.

The previous prime is 42113403481. The next prime is 42113403517. The reversal of 42113403505 is 50530431124.

42113403505 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 can be written as a sum of positive squares in 2 ways, for example, as 32888185201 + 9225218304 = 181351^2 + 96048^2 .

It is not a de Polignac number, because 42113403505 - 2⁵ = 42113403473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4211340346 + ... + 4211340355.

It is an arithmetic number, because the mean of its divisors is an integer number (12634021053).

Almost surely, 2^42113403505 is an apocalyptic number.

It is an amenable number.

42113403505 is a deficient number, since it is larger than the sum of its proper divisors (8422680707).

42113403505 is an equidigital number, since it uses as much as digits as its factorization.

42113403505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8422680706.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 42113403505 its reverse (50530431124), we get a palindrome (92643834629).

It can be divided in two parts, 4211 and 3403505, that added together give a square (3407716 = 1846²).

The spelling of 42113403505 in words is "forty-two billion, one hundred thirteen million, four hundred three thousand, five hundred five".