130220443 has 4 divisors (see below), whose sum is σ = 131789448. Its totient is φ = 128651440.

The previous prime is 130220423. The next prime is 130220449. The reversal of 130220443 is 344022031.

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-130220443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130220443.

It is not an unprimeable number, because it can be changed into a prime (130220449) 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, 784378 + ... + 784543.

It is an arithmetic number, because the mean of its divisors is an integer number (32947362).

Almost surely, 2^130220443 is an apocalyptic number.

130220443 is a deficient number, since it is larger than the sum of its proper divisors (1569005).

130220443 is an equidigital number, since it uses as much as digits as its factorization.

130220443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569004.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 130220443 is about 11411.4172213621. The cubic root of 130220443 is about 506.8658785443.

Adding to 130220443 its reverse (344022031), we get a palindrome (474242474).

The spelling of 130220443 in words is "one hundred thirty million, two hundred twenty thousand, four hundred forty-three".