1023204565393 has 2 divisors, whose sum is σ = 1023204565394. Its totient is φ = 1023204565392.

The previous prime is 1023204565379. The next prime is 1023204565457. The reversal of 1023204565393 is 3935654023201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 937860538624 + 85344026769 = 968432^2 + 292137^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023204565393 - 2¹³ = 1023204557201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1023204565303) 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, 511602282696 + 511602282697.

It is an arithmetic number, because the mean of its divisors is an integer number (511602282697).

Almost surely, 2^{1023204565393} is an apocalyptic number.

It is an amenable number.

1023204565393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023204565393 is an equidigital number, since it uses as much as digits as its factorization.

1023204565393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 583200, while the sum is 43.

Adding to 1023204565393 its reverse (3935654023201), we get a palindrome (4958858588594).

The spelling of 1023204565393 in words is "one trillion, twenty-three billion, two hundred four million, five hundred sixty-five thousand, three hundred ninety-three".