130002443 has 4 divisors (see below), whose sum is σ = 130800168. Its totient is φ = 129204720.

The previous prime is 130002421. The next prime is 130002449. The reversal of 130002443 is 344200031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130002443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130002449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398618 + ... + 398943.

It is an arithmetic number, because the mean of its divisors is an integer number (32700042).

Almost surely, 2^130002443 is an apocalyptic number.

130002443 is a deficient number, since it is larger than the sum of its proper divisors (797725).

130002443 is an equidigital number, since it uses as much as digits as its factorization.

130002443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797724.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 130002443 is about 11401.8613831251. The cubic root of 130002443 is about 506.5828751574.

Adding to 130002443 its reverse (344200031), we get a palindrome (474202474).

The spelling of 130002443 in words is "one hundred thirty million, two thousand, four hundred forty-three".