1030442021 has 24 divisors (see below), whose sum is σ = 1272075840. Its totient is φ = 830461632.

The previous prime is 1030441987. The next prime is 1030442033. The reversal of 1030442021 is 1202440301.

It is not a de Polignac number, because 1030442021 - 2¹⁴ = 1030425637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030442041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58745 + ... + 74241.

It is an arithmetic number, because the mean of its divisors is an integer number (53003160).

Almost surely, 2^1030442021 is an apocalyptic number.

It is an amenable number.

1030442021 is a deficient number, since it is larger than the sum of its proper divisors (241633819).

1030442021 is a wasteful number, since it uses less digits than its factorization.

1030442021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15593 (or 15586 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1030442021 is about 32100.4987655955. The cubic root of 1030442021 is about 1010.0460786741.

Adding to 1030442021 its reverse (1202440301), we get a palindrome (2232882322).

It can be divided in two parts, 10304 and 42021, that added together give a palindrome (52325).

The spelling of 1030442021 in words is "one billion, thirty million, four hundred forty-two thousand, twenty-one".