1042320427 has 2 divisors, whose sum is σ = 1042320428. Its totient is φ = 1042320426.

The previous prime is 1042320403. The next prime is 1042320437. The reversal of 1042320427 is 7240232401.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7240232401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1042320427 - 2⁷ = 1042320299 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042320437) 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, 521160213 + 521160214.

It is an arithmetic number, because the mean of its divisors is an integer number (521160214).

Almost surely, 2^1042320427 is an apocalyptic number.

1042320427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042320427 is an equidigital number, since it uses as much as digits as its factorization.

1042320427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 1042320427 is about 32284.9876413171. The cubic root of 1042320427 is about 1013.9123577069.

Adding to 1042320427 its reverse (7240232401), we get a palindrome (8282552828).

The spelling of 1042320427 in words is "one billion, forty-two million, three hundred twenty thousand, four hundred twenty-seven".