130124321 has 4 divisors (see below), whose sum is σ = 133150512. Its totient is φ = 127098132.

The previous prime is 130124287. The next prime is 130124347. The reversal of 130124321 is 123421031.

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 a de Polignac number, because none of the positive numbers 2^k-130124321 is a prime.

It is a super-2 number, since 2×130124321² = 33864677831422082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130124321.

It is not an unprimeable number, because it can be changed into a prime (130124021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1513031 + ... + 1513116.

It is an arithmetic number, because the mean of its divisors is an integer number (33287628).

Almost surely, 2^130124321 is an apocalyptic number.

It is an amenable number.

130124321 is a deficient number, since it is larger than the sum of its proper divisors (3026191).

130124321 is an equidigital number, since it uses as much as digits as its factorization.

130124321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3026190.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 130124321 is about 11407.2047846964. The cubic root of 130124321 is about 506.7411337819.

Adding to 130124321 its reverse (123421031), we get a palindrome (253545352).

The spelling of 130124321 in words is "one hundred thirty million, one hundred twenty-four thousand, three hundred twenty-one".