304130231 has 4 divisors (see below), whose sum is σ = 304201392. Its totient is φ = 304059072.

The previous prime is 304130227. The next prime is 304130237. The reversal of 304130231 is 132031403.

It is a happy number.

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 304130231 - 2² = 304130227 is a prime.

It is a super-2 number, since 2×304130231² = 184990394816226722, 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 (304130237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28730 + ... + 37863.

It is an arithmetic number, because the mean of its divisors is an integer number (76050348).

Almost surely, 2^304130231 is an apocalyptic number.

304130231 is a deficient number, since it is larger than the sum of its proper divisors (71161).

304130231 is an equidigital number, since it uses as much as digits as its factorization.

304130231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71160.

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

The square root of 304130231 is about 17439.3300043322. The cubic root of 304130231 is about 672.4910837529.

Adding to 304130231 its reverse (132031403), we get a palindrome (436161634).

The spelling of 304130231 in words is "three hundred four million, one hundred thirty thousand, two hundred thirty-one".