130121513 has 2 divisors, whose sum is σ = 130121514. Its totient is φ = 130121512.

The previous prime is 130121501. The next prime is 130121531. The reversal of 130121513 is 315121031.

Together with next prime (130121531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103164649 + 26956864 = 10157^2 + 5192^2 .

It is an emirp because it is prime and its reverse (315121031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130121513 - 2¹⁸ = 129859369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130121491 and 130121500.

It is not a weakly prime, because it can be changed into another prime (130121543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65060756 + 65060757.

It is an arithmetic number, because the mean of its divisors is an integer number (65060757).

Almost surely, 2^130121513 is an apocalyptic number.

It is an amenable number.

130121513 is a deficient number, since it is larger than the sum of its proper divisors (1).

130121513 is an equidigital number, since it uses as much as digits as its factorization.

130121513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 130121513 is about 11407.0817039241. The cubic root of 130121513 is about 506.7374887054.

Adding to 130121513 its reverse (315121031), we get a palindrome (445242544).

The spelling of 130121513 in words is "one hundred thirty million, one hundred twenty-one thousand, five hundred thirteen".