130561231 has 2 divisors, whose sum is σ = 130561232. Its totient is φ = 130561230.

The previous prime is 130561213. The next prime is 130561247. The reversal of 130561231 is 132165031.

It is a happy number.

Together with previous prime (130561213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 130561231 - 2⁵ = 130561199 is a prime.

It is a super-2 number, since 2×130561231² = 34092470080470722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130561531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65280615 + 65280616.

It is an arithmetic number, because the mean of its divisors is an integer number (65280616).

Almost surely, 2^130561231 is an apocalyptic number.

130561231 is a deficient number, since it is larger than the sum of its proper divisors (1).

130561231 is an equidigital number, since it uses as much as digits as its factorization.

130561231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 130561231 is about 11426.3393525661. The cubic root of 130561231 is about 507.3076508237.

The spelling of 130561231 in words is "one hundred thirty million, five hundred sixty-one thousand, two hundred thirty-one".