304121440431172 has 96 divisors (see below), whose sum is σ = 657588188823552. Its totient is φ = 119842968168576.

The previous prime is 304121440431169. The next prime is 304121440431173. The reversal of 304121440431172 is 271134044121403.

It is not an unprimeable number, because it can be changed into a prime (304121440431173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94169133 + ... + 97345099.

It is an arithmetic number, because the mean of its divisors is an integer number (6849876966912).

Almost surely, 2^{304121440431172} 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 304121440431172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328794094411776).

304121440431172 is an abundant number, since it is smaller than the sum of its proper divisors (353466748392380).

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

304121440431172 is a wasteful number, since it uses less digits than its factorization.

304121440431172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3177017 (or 3177015 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

Adding to 304121440431172 its reverse (271134044121403), we get a palindrome (575255484552575).

The spelling of 304121440431172 in words is "three hundred four trillion, one hundred twenty-one billion, four hundred forty million, four hundred thirty-one thousand, one hundred seventy-two".