1030315205 has 4 divisors (see below), whose sum is σ = 1236378252. Its totient is φ = 824252160.

The previous prime is 1030315201. The next prime is 1030315207. The reversal of 1030315205 is 5025130301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5025130301 = 379 ⋅13258919.

It can be written as a sum of positive squares in 2 ways, for example, as 725009476 + 305305729 = 26926^2 + 17473^2 .

It is not a de Polignac number, because 1030315205 - 2² = 1030315201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030315201) 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 3 ways as a sum of consecutive naturals, for example, 103031516 + ... + 103031525.

It is an arithmetic number, because the mean of its divisors is an integer number (309094563).

Almost surely, 2^1030315205 is an apocalyptic number.

It is an amenable number.

1030315205 is a deficient number, since it is larger than the sum of its proper divisors (206063047).

1030315205 is an equidigital number, since it uses as much as digits as its factorization.

1030315205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206063046.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 1030315205 is about 32098.5234084062. The cubic root of 1030315205 is about 1010.0046416805.

Adding to 1030315205 its reverse (5025130301), we get a palindrome (6055445506).

The spelling of 1030315205 in words is "one billion, thirty million, three hundred fifteen thousand, two hundred five".