1030243521 has 16 divisors (see below), whose sum is σ = 1402790400. Its totient is φ = 672322560.

The previous prime is 1030243451. The next prime is 1030243601. The reversal of 1030243521 is 1253420301.

It is not a de Polignac number, because 1030243521 - 2¹⁰ = 1030242497 is a prime.

It is a super-2 number, since 2×1030243521² = 2122803425124954882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1030243421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64176 + ... + 78606.

It is an arithmetic number, because the mean of its divisors is an integer number (87674400).

Almost surely, 2^1030243521 is an apocalyptic number.

It is an amenable number.

1030243521 is a deficient number, since it is larger than the sum of its proper divisors (372546879).

1030243521 is a wasteful number, since it uses less digits than its factorization.

1030243521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14936.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1030243521 is about 32097.4067644101. The cubic root of 1030243521 is about 1009.9812175052.

Adding to 1030243521 its reverse (1253420301), we get a palindrome (2283663822).

The spelling of 1030243521 in words is "one billion, thirty million, two hundred forty-three thousand, five hundred twenty-one".