130203065 has 4 divisors (see below), whose sum is σ = 156243684. Its totient is φ = 104162448.

The previous prime is 130203061. The next prime is 130203071. The reversal of 130203065 is 560302031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560302031 = 17 ⋅32958943.

It can be written as a sum of positive squares in 2 ways, for example, as 104121616 + 26081449 = 10204^2 + 5107^2 .

It is a cyclic number.

It is not a de Polignac number, because 130203065 - 2² = 130203061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (130203061) 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, 13020302 + ... + 13020311.

It is an arithmetic number, because the mean of its divisors is an integer number (39060921).

Almost surely, 2^130203065 is an apocalyptic number.

It is an amenable number.

130203065 is a deficient number, since it is larger than the sum of its proper divisors (26040619).

130203065 is an equidigital number, since it uses as much as digits as its factorization.

130203065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26040618.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 130203065 is about 11410.6557655553. The cubic root of 130203065 is about 506.8433303512.

Adding to 130203065 its reverse (560302031), we get a palindrome (690505096).

The spelling of 130203065 in words is "one hundred thirty million, two hundred three thousand, sixty-five".