440041322923 has 2 divisors, whose sum is σ = 440041322924. Its totient is φ = 440041322922.

The previous prime is 440041322921. The next prime is 440041322939. The reversal of 440041322923 is 329223140044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 440041322923 - 2¹ = 440041322921 is a prime.

Together with 440041322921, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (440041322921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220020661461 + 220020661462.

It is an arithmetic number, because the mean of its divisors is an integer number (220020661462).

Almost surely, 2^440041322923 is an apocalyptic number.

440041322923 is a deficient number, since it is larger than the sum of its proper divisors (1).

440041322923 is an equidigital number, since it uses as much as digits as its factorization.

440041322923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 440041322923 its reverse (329223140044), we get a palindrome (769264462967).

The spelling of 440041322923 in words is "four hundred forty billion, forty-one million, three hundred twenty-two thousand, nine hundred twenty-three".