1030313021 has 16 divisors (see below), whose sum is σ = 1067603328. Its totient is φ = 993888000.

The previous prime is 1030312967. The next prime is 1030313051. The reversal of 1030313021 is 1203130301.

It is a cyclic number.

It is not a de Polignac number, because 1030313021 - 2¹⁸ = 1030050877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1030312987 and 1030313005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030313051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 709346 + ... + 710796.

It is an arithmetic number, because the mean of its divisors is an integer number (66725208).

Almost surely, 2^1030313021 is an apocalyptic number.

It is an amenable number.

1030313021 is a deficient number, since it is larger than the sum of its proper divisors (37290307).

1030313021 is a wasteful number, since it uses less digits than its factorization.

1030313021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1030313021 is about 32098.4893881316. The cubic root of 1030313021 is about 1010.0039280310.

Adding to 1030313021 its reverse (1203130301), we get a palindrome (2233443322).

The spelling of 1030313021 in words is "one billion, thirty million, three hundred thirteen thousand, twenty-one".