130232231 has 4 divisors (see below), whose sum is σ = 130488600. Its totient is φ = 129975864.

The previous prime is 130232227. The next prime is 130232261. The reversal of 130232231 is 132232031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130232231 - 2² = 130232227 is a prime.

It is a super-2 number, since 2×130232231² = 33920867982474722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130232261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127421 + ... + 128438.

It is an arithmetic number, because the mean of its divisors is an integer number (32622150).

Almost surely, 2^130232231 is an apocalyptic number.

130232231 is a deficient number, since it is larger than the sum of its proper divisors (256369).

130232231 is an equidigital number, since it uses as much as digits as its factorization.

130232231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256368.

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

The square root of 130232231 is about 11411.9337099372. The cubic root of 130232231 is about 506.8811724940.

Adding to 130232231 its reverse (132232031), we get a palindrome (262464262).

It can be divided in two parts, 1302 and 32231, that added together give a palindrome (33533).

The spelling of 130232231 in words is "one hundred thirty million, two hundred thirty-two thousand, two hundred thirty-one".