130130321 has 2 divisors, whose sum is σ = 130130322. Its totient is φ = 130130320.

The previous prime is 130130309. The next prime is 130130327. The reversal of 130130321 is 123031031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118570321 + 11560000 = 10889^2 + 3400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130130321 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 130130296 and 130130305.

It is not a weakly prime, because it can be changed into another prime (130130327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65065160 + 65065161.

It is an arithmetic number, because the mean of its divisors is an integer number (65065161).

Almost surely, 2^130130321 is an apocalyptic number.

It is an amenable number.

130130321 is a deficient number, since it is larger than the sum of its proper divisors (1).

130130321 is an equidigital number, since it uses as much as digits as its factorization.

130130321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 130130321 is about 11407.4677733492. The cubic root of 130130321 is about 506.7489222313.

Adding to 130130321 its reverse (123031031), we get a palindrome (253161352).

The spelling of 130130321 in words is "one hundred thirty million, one hundred thirty thousand, three hundred twenty-one".