30112008728481 has 27 divisors (see below), whose sum is σ = 43604088921939. Its totient is φ = 20024506300032.

The previous prime is 30112008728453. The next prime is 30112008728489. The reversal of 30112008728481 is 18482780021103.

The square root of 30112008728481 is 5487441.

It is a perfect power (a square), and thus also a powerful number.

30112008728481 is a `hidden beast` number, since 3 + 0 + 11 + 200 + 87 + 284 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16657491286881 + 13454517441600 = 4081359^2 + 3668040^2 .

It is not a de Polignac number, because 30112008728481 - 2⁷ = 30112008728353 is a prime.

It is a super-2 number, since 2×30112008728481² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30112008728489) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7292807025 + ... + 7292811153.

Almost surely, 2^{30112008728481} is an apocalyptic number.

30112008728481 is the 5487441-st square number.

30112008728481 is the 2743721-st centered octagonal number.

It is an amenable number.

30112008728481 is a deficient number, since it is larger than the sum of its proper divisors (13492080193458).

30112008728481 is an frugal number, since it uses more digits than its factorization.

30112008728481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9150 (or 4575 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

Adding to 30112008728481 its reverse (18482780021103), we get a palindrome (48594788749584).

The spelling of 30112008728481 in words is "thirty trillion, one hundred twelve billion, eight million, seven hundred twenty-eight thousand, four hundred eighty-one".