1020304543 has 2 divisors, whose sum is σ = 1020304544. Its totient is φ = 1020304542.

The previous prime is 1020304501. The next prime is 1020304561. The reversal of 1020304543 is 3454030201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020304543 - 2²⁹ = 483433631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020304583) 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, 510152271 + 510152272.

It is an arithmetic number, because the mean of its divisors is an integer number (510152272).

Almost surely, 2^1020304543 is an apocalyptic number.

1020304543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020304543 is an equidigital number, since it uses as much as digits as its factorization.

1020304543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1020304543 is about 31942.2062951199. The cubic root of 1020304543 is about 1006.7228825650.

Adding to 1020304543 its reverse (3454030201), we get a palindrome (4474334744).

The spelling of 1020304543 in words is "one billion, twenty million, three hundred four thousand, five hundred forty-three".