305120122672 has 20 divisors (see below), whose sum is σ = 592516880560. Its totient is φ = 152212540608.

The previous prime is 305120122669. The next prime is 305120122673. The reversal of 305120122672 is 276221021503.

It is not an unprimeable number, because it can be changed into a prime (305120122673) 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 3 ways as a sum of consecutive naturals, for example, 21712803 + ... + 21726850.

It is an arithmetic number, because the mean of its divisors is an integer number (29625844028).

Almost surely, 2^305120122672 is an apocalyptic number.

It is an amenable number.

305120122672 is a deficient number, since it is larger than the sum of its proper divisors (287396757888).

305120122672 is a wasteful number, since it uses less digits than its factorization.

305120122672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43440100 (or 43440094 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 305120122672 in words is "three hundred five billion, one hundred twenty million, one hundred twenty-two thousand, six hundred seventy-two".