130320431 has 2 divisors, whose sum is σ = 130320432. Its totient is φ = 130320430.

The previous prime is 130320409. The next prime is 130320451. The reversal of 130320431 is 134023031.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (134023031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130320431 is a prime.

It is a super-2 number, since 2×130320431² = 33966829472051522, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130320451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65160215 + 65160216.

It is an arithmetic number, because the mean of its divisors is an integer number (65160216).

Almost surely, 2^130320431 is an apocalyptic number.

130320431 is a deficient number, since it is larger than the sum of its proper divisors (1).

130320431 is an equidigital number, since it uses as much as digits as its factorization.

130320431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 130320431 is about 11415.7974316296. The cubic root of 130320431 is about 506.9955753835.

Adding to 130320431 its reverse (134023031), we get a palindrome (264343462).

The spelling of 130320431 in words is "one hundred thirty million, three hundred twenty thousand, four hundred thirty-one".