304311131343 has 6 divisors (see below), whose sum is σ = 439560523064. Its totient is φ = 202874087556.

The previous prime is 304311131321. The next prime is 304311131417. The reversal of 304311131343 is 343131113403.

304311131343 is a `hidden beast` number, since 3 + 0 + 4 + 311 + 1 + 3 + 1 + 343 = 666.

It is not a de Polignac number, because 304311131343 - 2⁹ = 304311130831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304311131143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16906173955 + ... + 16906173972.

Almost surely, 2^304311131343 is an apocalyptic number.

304311131343 is a deficient number, since it is larger than the sum of its proper divisors (135249391721).

304311131343 is a wasteful number, since it uses less digits than its factorization.

304311131343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33812347933 (or 33812347930 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 304311131343 its reverse (343131113403), we get a palindrome (647442244746).

The spelling of 304311131343 in words is "three hundred four billion, three hundred eleven million, one hundred thirty-one thousand, three hundred forty-three".