130320961 has 2 divisors, whose sum is σ = 130320962. Its totient is φ = 130320960.

The previous prime is 130320941. The next prime is 130321033. The reversal of 130320961 is 169023031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128482225 + 1838736 = 11335^2 + 1356^2 .

It is a cyclic number.

It is not a de Polignac number, because 130320961 - 2¹¹ = 130318913 is a prime.

It is not a weakly prime, because it can be changed into another prime (130320901) 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 as a sum of consecutive naturals, namely, 65160480 + 65160481.

It is an arithmetic number, because the mean of its divisors is an integer number (65160481).

Almost surely, 2^130320961 is an apocalyptic number.

It is an amenable number.

130320961 is a deficient number, since it is larger than the sum of its proper divisors (1).

130320961 is an equidigital number, since it uses as much as digits as its factorization.

130320961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 130320961 is about 11415.8206450522. The cubic root of 130320961 is about 506.9962626824.

Adding to 130320961 its reverse (169023031), we get a palindrome (299343992).

The spelling of 130320961 in words is "one hundred thirty million, three hundred twenty thousand, nine hundred sixty-one".