1030243421 has 2 divisors, whose sum is σ = 1030243422. Its totient is φ = 1030243420.

The previous prime is 1030243411. The next prime is 1030243433. The reversal of 1030243421 is 1243420301.

1030243421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 991368196 + 38875225 = 31486^2 + 6235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1030243421 is a prime.

It is a super-2 number, since 2×1030243421² = 2122803013027566482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1030243393 and 1030243402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1030243411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515121710 + 515121711.

It is an arithmetic number, because the mean of its divisors is an integer number (515121711).

Almost surely, 2^1030243421 is an apocalyptic number.

It is an amenable number.

1030243421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030243421 is an equidigital number, since it uses as much as digits as its factorization.

1030243421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1030243421 is about 32097.4052066518. The cubic root of 1030243421 is about 1009.9811848274.

Adding to 1030243421 its reverse (1243420301), we get a palindrome (2273663722).

The spelling of 1030243421 in words is "one billion, thirty million, two hundred forty-three thousand, four hundred twenty-one".