1030503421 has 2 divisors, whose sum is σ = 1030503422. Its totient is φ = 1030503420.

The previous prime is 1030503403. The next prime is 1030503449. The reversal of 1030503421 is 1243050301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 999255321 + 31248100 = 31611^2 + 5590^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030503421 - 2²³ = 1022114813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1030503121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515251710 + 515251711.

It is an arithmetic number, because the mean of its divisors is an integer number (515251711).

Almost surely, 2^1030503421 is an apocalyptic number.

It is an amenable number.

1030503421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030503421 is an equidigital number, since it uses as much as digits as its factorization.

1030503421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1030503421 is about 32101.4551227822. The cubic root of 1030503421 is about 1010.0661398376.

Adding to 1030503421 its reverse (1243050301), we get a palindrome (2273553722).

The spelling of 1030503421 in words is "one billion, thirty million, five hundred three thousand, four hundred twenty-one".