130511231 has 2 divisors, whose sum is σ = 130511232. Its totient is φ = 130511230.

The previous prime is 130511207. The next prime is 130511233. The reversal of 130511231 is 132115031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 130511231 - 2⁶ = 130511167 is a prime.

It is a super-2 number, since 2×130511231² = 34066362834270722, which contains 22 as substring.

Together with 130511233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130511233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65255615 + 65255616.

It is an arithmetic number, because the mean of its divisors is an integer number (65255616).

Almost surely, 2^130511231 is an apocalyptic number.

130511231 is a deficient number, since it is larger than the sum of its proper divisors (1).

130511231 is an equidigital number, since it uses as much as digits as its factorization.

130511231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 130511231 is about 11424.1512157359. The cubic root of 130511231 is about 507.2428826914.

Adding to 130511231 its reverse (132115031), we get a palindrome (262626262).

The spelling of 130511231 in words is "one hundred thirty million, five hundred eleven thousand, two hundred thirty-one".