130205423 has 4 divisors (see below), whose sum is σ = 137058360. Its totient is φ = 123352488.

The previous prime is 130205417. The next prime is 130205429. The reversal of 130205423 is 324502031.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (130205417) and next prime (130205429).

It is a cyclic number.

It is not a de Polignac number, because 130205423 - 2⁴ = 130205407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130205395 and 130205404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130205429) 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, 3426440 + ... + 3426477.

It is an arithmetic number, because the mean of its divisors is an integer number (34264590).

Almost surely, 2^130205423 is an apocalyptic number.

130205423 is a deficient number, since it is larger than the sum of its proper divisors (6852937).

130205423 is an equidigital number, since it uses as much as digits as its factorization.

130205423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6852936.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 130205423 is about 11410.7590895610. The cubic root of 130205423 is about 506.8463900061.

Adding to 130205423 its reverse (324502031), we get a palindrome (454707454).

The spelling of 130205423 in words is "one hundred thirty million, two hundred five thousand, four hundred twenty-three".