30120100428 has 24 divisors (see below), whose sum is σ = 76669346880. Its totient is φ = 9127303120.

The previous prime is 30120100427. The next prime is 30120100487. The reversal of 30120100428 is 82400102103.

It is not an unprimeable number, because it can be changed into a prime (30120100427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114091158 + ... + 114091421.

It is an arithmetic number, because the mean of its divisors is an integer number (3194556120).

Almost surely, 2^30120100428 is an apocalyptic number.

It is an amenable number.

30120100428 is an abundant number, since it is smaller than the sum of its proper divisors (46549246452).

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

30120100428 is a wasteful number, since it uses less digits than its factorization.

30120100428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228182597 (or 228182595 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The spelling of 30120100428 in words is "thirty billion, one hundred twenty million, one hundred thousand, four hundred twenty-eight".