305343312140 has 48 divisors (see below), whose sum is σ = 673531407360. Its totient is φ = 116053291200.

The previous prime is 305343312133. The next prime is 305343312173. The reversal of 305343312140 is 41213343503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2128520 + ... + 2267439.

It is an arithmetic number, because the mean of its divisors is an integer number (14031904320).

Almost surely, 2^305343312140 is an apocalyptic number.

It is an amenable number.

305343312140 is an abundant number, since it is smaller than the sum of its proper divisors (368188095220).

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

305343312140 is a wasteful number, since it uses less digits than its factorization.

305343312140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4396142 (or 4396140 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 305343312140 its reverse (41213343503), we get a palindrome (346556655643).

The spelling of 305343312140 in words is "three hundred five billion, three hundred forty-three million, three hundred twelve thousand, one hundred forty".