130244321 has 4 divisors (see below), whose sum is σ = 130546944. Its totient is φ = 129941700.

The previous prime is 130244311. The next prime is 130244341. The reversal of 130244321 is 123442031.

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 130244321 - 2²² = 126050017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130244293 and 130244302.

It is not an unprimeable number, because it can be changed into a prime (130244311) 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, 150665 + ... + 151526.

It is an arithmetic number, because the mean of its divisors is an integer number (32636736).

Almost surely, 2^130244321 is an apocalyptic number.

It is an amenable number.

130244321 is a deficient number, since it is larger than the sum of its proper divisors (302623).

130244321 is an equidigital number, since it uses as much as digits as its factorization.

130244321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302622.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 130244321 is about 11412.4634062940. The cubic root of 130244321 is about 506.8968573049.

Adding to 130244321 its reverse (123442031), we get a palindrome (253686352).

The spelling of 130244321 in words is "one hundred thirty million, two hundred forty-four thousand, three hundred twenty-one".