1030240021 has 8 divisors (see below), whose sum is σ = 1099320320. Its totient is φ = 962645472.

The previous prime is 1030239997. The next prime is 1030240037. The reversal of 1030240021 is 1200420301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1030240021 - 2¹⁵ = 1030207253 is a prime.

It is a super-2 number, since 2×1030240021² = 2122789001740160882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1030239983 and 1030240010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030240091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370005 + ... + 372778.

It is an arithmetic number, because the mean of its divisors is an integer number (137415040).

Almost surely, 2^1030240021 is an apocalyptic number.

It is an amenable number.

1030240021 is a deficient number, since it is larger than the sum of its proper divisors (69080299).

1030240021 is an equidigital number, since it uses as much as digits as its factorization.

1030240021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742875.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1030240021 is about 32097.3522428253. The cubic root of 1030240021 is about 1009.9800737826.

Adding to 1030240021 its reverse (1200420301), we get a palindrome (2230660322).

The spelling of 1030240021 in words is "one billion, thirty million, two hundred forty thousand, twenty-one".