305023083512 has 48 divisors (see below), whose sum is σ = 675222494760. Its totient is φ = 128773060416.

The previous prime is 305023083511. The next prime is 305023083553. The reversal of 305023083512 is 215380320503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305023083511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5780603 + ... + 5833130.

Almost surely, 2^305023083512 is an apocalyptic number.

It is an amenable number.

305023083512 is an abundant number, since it is smaller than the sum of its proper divisors (370199411248).

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

305023083512 is a wasteful number, since it uses less digits than its factorization.

305023083512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11613820 (or 11613809 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 305023083512 in words is "three hundred five billion, twenty-three million, eighty-three thousand, five hundred twelve".