305034220000 has 120 divisors (see below), whose sum is σ = 750975548400. Its totient is φ = 121924992000.

The previous prime is 305034219979. The next prime is 305034220009. The reversal of 305034220000 is 22430503.

It is a self number, because there is not a number n which added to its sum of digits gives 305034220000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305034220009) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 32175261 + ... + 32184739.

It is an arithmetic number, because the mean of its divisors is an integer number (6258129570).

Almost surely, 2^305034220000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 305034220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375487774200).

305034220000 is an abundant number, since it is smaller than the sum of its proper divisors (445941328400).

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

305034220000 is an equidigital number, since it uses as much as digits as its factorization.

305034220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11118 (or 11095 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

Adding to 305034220000 its reverse (22430503), we get a palindrome (305056650503).

The spelling of 305034220000 in words is "three hundred five billion, thirty-four million, two hundred twenty thousand".