30280121864128 has 28 divisors (see below), whose sum is σ = 60095880582192. Its totient is φ = 15137852741120.

The previous prime is 30280121864117. The next prime is 30280121864203. The reversal of 30280121864128 is 82146812108203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34060708 + ... + 34938403.

It is an arithmetic number, because the mean of its divisors is an integer number (2146281449364).

Almost surely, 2^{30280121864128} is an apocalyptic number.

It is an amenable number.

30280121864128 is a deficient number, since it is larger than the sum of its proper divisors (29815758718064).

30280121864128 is an equidigital number, since it uses as much as digits as its factorization.

30280121864128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69005980 (or 69005970 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 46.

The spelling of 30280121864128 in words is "thirty trillion, two hundred eighty billion, one hundred twenty-one million, eight hundred sixty-four thousand, one hundred twenty-eight".