440242444242101 has 2 divisors, whose sum is σ = 440242444242102. Its totient is φ = 440242444242100.

The previous prime is 440242444242037. The next prime is 440242444242119. The reversal of 440242444242101 is 101242444242044.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 431883834694225 + 8358609547876 = 20781815^2 + 2891126^2 .

It is a cyclic number.

It is not a de Polignac number, because 440242444242101 - 2⁶ = 440242444242037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440242444242901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220121222121050 + 220121222121051.

It is an arithmetic number, because the mean of its divisors is an integer number (220121222121051).

Almost surely, 2^{440242444242101} is an apocalyptic number.

It is an amenable number.

440242444242101 is a deficient number, since it is larger than the sum of its proper divisors (1).

440242444242101 is an equidigital number, since it uses as much as digits as its factorization.

440242444242101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 262144, while the sum is 38.

Adding to 440242444242101 its reverse (101242444242044), we get a palindrome (541484888484145).

The spelling of 440242444242101 in words is "four hundred forty trillion, two hundred forty-two billion, four hundred forty-four million, two hundred forty-two thousand, one hundred one".