1423021441 has 2 divisors, whose sum is σ = 1423021442. Its totient is φ = 1423021440.

The previous prime is 1423021393. The next prime is 1423021447. The reversal of 1423021441 is 1441203241.

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., 1403626225 + 19395216 = 37465^2 + 4404^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423021441 - 2¹¹ = 1423019393 is a prime.

It is not a weakly prime, because it can be changed into another prime (1423021447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711510720 + 711510721.

It is an arithmetic number, because the mean of its divisors is an integer number (711510721).

Almost surely, 2^1423021441 is an apocalyptic number.

It is an amenable number.

1423021441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423021441 is an equidigital number, since it uses as much as digits as its factorization.

1423021441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1423021441 is about 37722.9564191356. The cubic root of 1423021441 is about 1124.7874998801.

Adding to 1423021441 its reverse (1441203241), we get a palindrome (2864224682).

The spelling of 1423021441 in words is "one billion, four hundred twenty-three million, twenty-one thousand, four hundred forty-one".