130324221 has 10 divisors (see below), whose sum is σ = 194681982. Its totient is φ = 86882760.

The previous prime is 130324189. The next prime is 130324247. The reversal of 130324221 is 122423031.

It can be written as a sum of positive squares in only one way, i.e., 72488196 + 57836025 = 8514^2 + 7605^2 .

It is not a de Polignac number, because 130324221 - 2⁵ = 130324189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130324194 and 130324203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134324221) 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 9 ways as a sum of consecutive naturals, for example, 804390 + ... + 804551.

Almost surely, 2^130324221 is an apocalyptic number.

It is an amenable number.

130324221 is a deficient number, since it is larger than the sum of its proper divisors (64357761).

130324221 is an equidigital number, since it uses as much as digits as its factorization.

130324221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608953 (or 1608944 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 130324221 is about 11415.9634284628. The cubic root of 130324221 is about 507.0004901784. Note that the first 3 decimals are identical.

Adding to 130324221 its reverse (122423031), we get a palindrome (252747252).

The spelling of 130324221 in words is "one hundred thirty million, three hundred twenty-four thousand, two hundred twenty-one".