130442231 has 2 divisors, whose sum is σ = 130442232. Its totient is φ = 130442230.

The previous prime is 130442183. The next prime is 130442237. The reversal of 130442231 is 132244031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130442231 is a prime.

It is a super-2 number, since 2×130442231² = 34030351256514722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130442237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65221115 + 65221116.

It is an arithmetic number, because the mean of its divisors is an integer number (65221116).

Almost surely, 2^130442231 is an apocalyptic number.

130442231 is a deficient number, since it is larger than the sum of its proper divisors (1).

130442231 is an equidigital number, since it uses as much as digits as its factorization.

130442231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 130442231 is about 11421.1308984706. The cubic root of 130442231 is about 507.1534754977.

Adding to 130442231 its reverse (132244031), we get a palindrome (262686262).

The spelling of 130442231 in words is "one hundred thirty million, four hundred forty-two thousand, two hundred thirty-one".