304242320213 has 8 divisors (see below), whose sum is σ = 327672829848. Its totient is φ = 280815704064.

The previous prime is 304242320201. The next prime is 304242320227. The reversal of 304242320213 is 312023242403.

It can be written as a sum of positive squares in 4 ways, for example, as 27842927044 + 276399393169 = 166862^2 + 525737^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 304242320213 - 2⁴ = 304242320197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304242320713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 810056 + ... + 1124577.

It is an arithmetic number, because the mean of its divisors is an integer number (40959103731).

Almost surely, 2^304242320213 is an apocalyptic number.

It is an amenable number.

304242320213 is a deficient number, since it is larger than the sum of its proper divisors (23430509635).

304242320213 is a wasteful number, since it uses less digits than its factorization.

304242320213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946743.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 304242320213 its reverse (312023242403), we get a palindrome (616265562616).

The spelling of 304242320213 in words is "three hundred four billion, two hundred forty-two million, three hundred twenty thousand, two hundred thirteen".