30121747882 has 8 divisors (see below), whose sum is σ = 45183746916. Its totient is φ = 15060498912.

The previous prime is 30121747879. The next prime is 30121747883. The reversal of 30121747882 is 28874712103.

It can be written as a sum of positive squares in 2 ways, for example, as 30119949601 + 1798281 = 173551^2 + 1341^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (30121747883) 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, 73173 + ... + 256120.

Almost surely, 2^30121747882 is an apocalyptic number.

30121747882 is a deficient number, since it is larger than the sum of its proper divisors (15061999034).

30121747882 is a wasteful number, since it uses less digits than its factorization.

30121747882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375032.

The product of its (nonzero) digits is 150528, while the sum is 43.

The spelling of 30121747882 in words is "thirty billion, one hundred twenty-one million, seven hundred forty-seven thousand, eight hundred eighty-two".