130021424 has 20 divisors (see below), whose sum is σ = 271295136. Its totient is φ = 60009792.

The previous prime is 130021421. The next prime is 130021429. The reversal of 130021424 is 424120031.

It is not an unprimeable number, because it can be changed into a prime (130021421) 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, 312344 + ... + 312759.

Almost surely, 2^130021424 is an apocalyptic number.

It is an amenable number.

130021424 is an abundant number, since it is smaller than the sum of its proper divisors (141273712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130021424 is a wasteful number, since it uses less digits than its factorization.

130021424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625124 (or 625118 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 130021424 is about 11402.6937168373. The cubic root of 130021424 is about 506.6075284932.

Adding to 130021424 its reverse (424120031), we get a palindrome (554141455).

The spelling of 130021424 in words is "one hundred thirty million, twenty-one thousand, four hundred twenty-four".