1042432331321 has 2 divisors, whose sum is σ = 1042432331322. Its totient is φ = 1042432331320.

The previous prime is 1042432331273. The next prime is 1042432331363. The reversal of 1042432331321 is 1231332342401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 989318676025 + 53113655296 = 994645^2 + 230464^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042432331321 - 2⁶ = 1042432331257 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042432330321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521216165660 + 521216165661.

It is an arithmetic number, because the mean of its divisors is an integer number (521216165661).

Almost surely, 2^{1042432331321} is an apocalyptic number.

It is an amenable number.

1042432331321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042432331321 is an equidigital number, since it uses as much as digits as its factorization.

1042432331321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 1042432331321 its reverse (1231332342401), we get a palindrome (2273764673722).

The spelling of 1042432331321 in words is "one trillion, forty-two billion, four hundred thirty-two million, three hundred thirty-one thousand, three hundred twenty-one".