130231321 has 8 divisors (see below), whose sum is σ = 142159104. Its totient is φ = 118318320.

The previous prime is 130231307. The next prime is 130231333. The reversal of 130231321 is 123132031.

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

It is a cyclic number.

It is not a de Polignac number, because 130231321 - 2⁵ = 130231289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130231295 and 130231304.

It is not an unprimeable number, because it can be changed into a prime (130231351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23416 + ... + 28438.

It is an arithmetic number, because the mean of its divisors is an integer number (17769888).

Almost surely, 2^130231321 is an apocalyptic number.

130231321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130231321 is a deficient number, since it is larger than the sum of its proper divisors (11927783).

130231321 is a wasteful number, since it uses less digits than its factorization.

130231321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7391.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 130231321 is about 11411.8938393240. The cubic root of 130231321 is about 506.8799918775.

Adding to 130231321 its reverse (123132031), we get a palindrome (253363352).

It can be divided in two parts, 1302 and 31321, that added together give a palindrome (32623).

The spelling of 130231321 in words is "one hundred thirty million, two hundred thirty-one thousand, three hundred twenty-one".