1030820543 has 2 divisors, whose sum is σ = 1030820544. Its totient is φ = 1030820542.

The previous prime is 1030820513. The next prime is 1030820561. The reversal of 1030820543 is 3450280301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1030820543 - 2¹² = 1030816447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1030820513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515410271 + 515410272.

It is an arithmetic number, because the mean of its divisors is an integer number (515410272).

Almost surely, 2^1030820543 is an apocalyptic number.

1030820543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030820543 is an equidigital number, since it uses as much as digits as its factorization.

1030820543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1030820543 is about 32106.3941139456. The cubic root of 1030820543 is about 1010.1697401221.

The spelling of 1030820543 in words is "one billion, thirty million, eight hundred twenty thousand, five hundred forty-three".