130431313 has 4 divisors (see below), whose sum is σ = 130672948. Its totient is φ = 130189680.

The previous prime is 130431289. The next prime is 130431317. The reversal of 130431313 is 313134031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313134031 = 7 ⋅44733433.

It can be written as a sum of positive squares in 2 ways, for example, as 61591104 + 68840209 = 7848^2 + 8297^2 .

It is a cyclic number.

It is not a de Polignac number, because 130431313 - 2¹⁷ = 130300241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130431317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120006 + ... + 121087.

It is an arithmetic number, because the mean of its divisors is an integer number (32668237).

Almost surely, 2^130431313 is an apocalyptic number.

It is an amenable number.

130431313 is a deficient number, since it is larger than the sum of its proper divisors (241635).

130431313 is an equidigital number, since it uses as much as digits as its factorization.

130431313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241634.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 130431313 is about 11420.6529147856. The cubic root of 130431313 is about 507.1393255401.

Adding to 130431313 its reverse (313134031), we get a palindrome (443565344).

The spelling of 130431313 in words is "one hundred thirty million, four hundred thirty-one thousand, three hundred thirteen".