130312513 has 2 divisors, whose sum is σ = 130312514. Its totient is φ = 130312512.

The previous prime is 130312487. The next prime is 130312577. The reversal of 130312513 is 315213031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112190464 + 18122049 = 10592^2 + 4257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130312513 is a prime.

It is not a weakly prime, because it can be changed into another prime (130312913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65156256 + 65156257.

It is an arithmetic number, because the mean of its divisors is an integer number (65156257).

Almost surely, 2^130312513 is an apocalyptic number.

It is an amenable number.

130312513 is a deficient number, since it is larger than the sum of its proper divisors (1).

130312513 is an equidigital number, since it uses as much as digits as its factorization.

130312513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 130312513 is about 11415.4506262346. The cubic root of 130312513 is about 506.9853071744.

Adding to 130312513 its reverse (315213031), we get a palindrome (445525544).

The spelling of 130312513 in words is "one hundred thirty million, three hundred twelve thousand, five hundred thirteen".