130030121 has 12 divisors (see below), whose sum is σ = 141191820. Its totient is φ = 119695680.

The previous prime is 130030097. The next prime is 130030123. The reversal of 130030121 is 121030031.

It can be written as a sum of positive squares in 6 ways, for example, as 26214400 + 103815721 = 5120^2 + 10189^2 .

It is a de Polignac number, because none of the positive numbers 2^k-130030121 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130030123) 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 11 ways as a sum of consecutive naturals, for example, 77075 + ... + 78743.

It is an arithmetic number, because the mean of its divisors is an integer number (11765985).

Almost surely, 2^130030121 is an apocalyptic number.

It is an amenable number.

130030121 is a deficient number, since it is larger than the sum of its proper divisors (11161699).

130030121 is a wasteful number, since it uses less digits than its factorization.

130030121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156 (or 2143 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 130030121 is about 11403.0750677175. The cubic root of 130030121 is about 506.6188237277.

Adding to 130030121 its reverse (121030031), we get a palindrome (251060152).

The spelling of 130030121 in words is "one hundred thirty million, thirty thousand, one hundred twenty-one".