304313121340 has 12 divisors (see below), whose sum is σ = 639057554856. Its totient is φ = 121725248528.

The previous prime is 304313121289. The next prime is 304313121353. The reversal of 304313121340 is 43121313403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7607828014 + ... + 7607828053.

It is an arithmetic number, because the mean of its divisors is an integer number (53254796238).

Almost surely, 2^304313121340 is an apocalyptic number.

It is an amenable number.

304313121340 is an abundant number, since it is smaller than the sum of its proper divisors (334744433516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

304313121340 is a wasteful number, since it uses less digits than its factorization.

304313121340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15215656076 (or 15215656074 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 304313121340 its reverse (43121313403), we get a palindrome (347434434743).

The spelling of 304313121340 in words is "three hundred four billion, three hundred thirteen million, one hundred twenty-one thousand, three hundred forty".