130324021 has 4 divisors (see below), whose sum is σ = 137183200. Its totient is φ = 123464844.

The previous prime is 130324001. The next prime is 130324043. The reversal of 130324021 is 120423031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130324021 - 2¹⁵ = 130291253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130323986 and 130324004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130324001) 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, 3429561 + ... + 3429598.

It is an arithmetic number, because the mean of its divisors is an integer number (34295800).

Almost surely, 2^130324021 is an apocalyptic number.

It is an amenable number.

130324021 is a deficient number, since it is larger than the sum of its proper divisors (6859179).

130324021 is an equidigital number, since it uses as much as digits as its factorization.

130324021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6859178.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 130324021 is about 11415.9546687958. The cubic root of 130324021 is about 507.0002308249. Note that the first 3 decimals are identical.

Adding to 130324021 its reverse (120423031), we get a palindrome (250747052).

The spelling of 130324021 in words is "one hundred thirty million, three hundred twenty-four thousand, twenty-one".