130530121 has 4 divisors (see below), whose sum is σ = 130950144. Its totient is φ = 130110100.

The previous prime is 130530091. The next prime is 130530157. The reversal of 130530121 is 121035031.

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 130530121 - 2¹³ = 130521929 is a prime.

It is a super-2 number, since 2×130530121² = 34076224976549282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130530095 and 130530104.

It is not an unprimeable number, because it can be changed into a prime (130530161) 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 3 ways as a sum of consecutive naturals, for example, 209545 + ... + 210166.

It is an arithmetic number, because the mean of its divisors is an integer number (32737536).

Almost surely, 2^130530121 is an apocalyptic number.

It is an amenable number.

130530121 is a deficient number, since it is larger than the sum of its proper divisors (420023).

130530121 is an equidigital number, since it uses as much as digits as its factorization.

130530121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420022.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 130530121 is about 11424.9779430859. The cubic root of 130530121 is about 507.2673540357.

Adding to 130530121 its reverse (121035031), we get a palindrome (251565152).

The spelling of 130530121 in words is "one hundred thirty million, five hundred thirty thousand, one hundred twenty-one".