20132442440405 has 4 divisors (see below), whose sum is σ = 24158930928492. Its totient is φ = 16105953952320.

The previous prime is 20132442440387. The next prime is 20132442440419. The reversal of 20132442440405 is 50404424423102.

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 5245739768164 + 14886702672241 = 2290358^2 + 3858329^2 .

It is not a de Polignac number, because 20132442440405 - 2¹⁴ = 20132442424021 is a prime.

It is a Duffinian number.

It is a congruent 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, 2013244244036 + ... + 2013244244045.

It is an arithmetic number, because the mean of its divisors is an integer number (6039732732123).

Almost surely, 2^{20132442440405} is an apocalyptic number.

It is an amenable number.

20132442440405 is a deficient number, since it is larger than the sum of its proper divisors (4026488488087).

20132442440405 is an equidigital number, since it uses as much as digits as its factorization.

20132442440405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026488488086.

The product of its (nonzero) digits is 122880, while the sum is 35.

Adding to 20132442440405 its reverse (50404424423102), we get a palindrome (70536866863507).

The spelling of 20132442440405 in words is "twenty trillion, one hundred thirty-two billion, four hundred forty-two million, four hundred forty thousand, four hundred five".