130243423521 has 8 divisors (see below), whose sum is σ = 173684522080. Its totient is φ = 86815636992.

The previous prime is 130243423487. The next prime is 130243423523. The reversal of 130243423521 is 125324342031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 130243423521 - 2⁷ = 130243423393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130243423523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3305155 + ... + 3344328.

It is an arithmetic number, because the mean of its divisors is an integer number (21710565260).

Almost surely, 2^130243423521 is an apocalyptic number.

It is an amenable number.

130243423521 is a deficient number, since it is larger than the sum of its proper divisors (43441098559).

130243423521 is an equidigital number, since it uses as much as digits as its factorization.

130243423521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6656015.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 130243423521 its reverse (125324342031), we get a palindrome (255567765552).

The spelling of 130243423521 in words is "one hundred thirty billion, two hundred forty-three million, four hundred twenty-three thousand, five hundred twenty-one".