1030105217 has 4 divisors (see below), whose sum is σ = 1031955156. Its totient is φ = 1028255280.

The previous prime is 1030105213. The next prime is 1030105247. The reversal of 1030105217 is 7125010301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 631064641 + 399040576 = 25121^2 + 19976^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030105217 - 2² = 1030105213 is a prime.

It is a super-2 number, since 2×1030105217² = 2122233516181234178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1030105213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 924134 + ... + 925247.

It is an arithmetic number, because the mean of its divisors is an integer number (257988789).

Almost surely, 2^1030105217 is an apocalyptic number.

It is an amenable number.

1030105217 is a deficient number, since it is larger than the sum of its proper divisors (1849939).

1030105217 is an equidigital number, since it uses as much as digits as its factorization.

1030105217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849938.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 1030105217 is about 32095.2522501382. The cubic root of 1030105217 is about 1009.9360208468.

Adding to 1030105217 its reverse (7125010301), we get a palindrome (8155115518).

The spelling of 1030105217 in words is "one billion, thirty million, one hundred five thousand, two hundred seventeen".