1030323021 has 32 divisors (see below), whose sum is σ = 1722712320. Its totient is φ = 533205504.

The previous prime is 1030323017. The next prime is 1030323031. The reversal of 1030323021 is 1203230301.

It is not a de Polignac number, because 1030323021 - 2² = 1030323017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030323031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21136 + ... + 50073.

It is an arithmetic number, because the mean of its divisors is an integer number (53834760).

Almost surely, 2^1030323021 is an apocalyptic number.

It is an amenable number.

1030323021 is a deficient number, since it is larger than the sum of its proper divisors (692389299).

1030323021 is a wasteful number, since it uses less digits than its factorization.

1030323021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71285.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1030323021 is about 32098.6451583241. The cubic root of 1030323021 is about 1010.0071956485.

Adding to 1030323021 its reverse (1203230301), we get a palindrome (2233553322).

The spelling of 1030323021 in words is "one billion, thirty million, three hundred twenty-three thousand, twenty-one".