304311421313 has 4 divisors (see below), whose sum is σ = 305574124548. Its totient is φ = 303048718080.

The previous prime is 304311421283. The next prime is 304311421363. The reversal of 304311421313 is 313124113403.

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

It can be written as a sum of positive squares in 2 ways, for example, as 214316221249 + 89995200064 = 462943^2 + 299992^2 .

It is a cyclic number.

It is not a de Polignac number, because 304311421313 - 2³⁰ = 303237679489 is a prime.

It is a super-2 number, since 2×304311421313² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304311421363) 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, 631351256 + ... + 631351737.

It is an arithmetic number, because the mean of its divisors is an integer number (76393531137).

Almost surely, 2^304311421313 is an apocalyptic number.

It is an amenable number.

304311421313 is a deficient number, since it is larger than the sum of its proper divisors (1262703235).

304311421313 is a wasteful number, since it uses less digits than its factorization.

304311421313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262703234.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 304311421313 its reverse (313124113403), we get a palindrome (617435534716).

The spelling of 304311421313 in words is "three hundred four billion, three hundred eleven million, four hundred twenty-one thousand, three hundred thirteen".