423342442441 has 2 divisors, whose sum is σ = 423342442442. Its totient is φ = 423342442440.

The previous prime is 423342442433. The next prime is 423342442459. The reversal of 423342442441 is 144244243324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 270430160841 + 152912281600 = 520029^2 + 391040^2 .

It is a cyclic number.

It is not a de Polignac number, because 423342442441 - 2³ = 423342442433 is a prime.

It is a super-2 number, since 2×423342442441² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 423342442441.

It is not a weakly prime, because it can be changed into another prime (423342442541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211671221220 + 211671221221.

It is an arithmetic number, because the mean of its divisors is an integer number (211671221221).

Almost surely, 2^423342442441 is an apocalyptic number.

It is an amenable number.

423342442441 is a deficient number, since it is larger than the sum of its proper divisors (1).

423342442441 is an equidigital number, since it uses as much as digits as its factorization.

423342442441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 294912, while the sum is 37.

Adding to 423342442441 its reverse (144244243324), we get a palindrome (567586685765).

The spelling of 423342442441 in words is "four hundred twenty-three billion, three hundred forty-two million, four hundred forty-two thousand, four hundred forty-one".