30112302120 has 32 divisors (see below), whose sum is σ = 90336906720. Its totient is φ = 8029947200.

The previous prime is 30112302119. The next prime is 30112302127. The reversal of 30112302120 is 2120321103.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30112302120.

It is not an unprimeable number, because it can be changed into a prime (30112302127) 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, 125467806 + ... + 125468045.

It is an arithmetic number, because the mean of its divisors is an integer number (2823028335).

Almost surely, 2^30112302120 is an apocalyptic number.

30112302120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30112302120 is an abundant number, since it is smaller than the sum of its proper divisors (60224604600).

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

30112302120 is a wasteful number, since it uses less digits than its factorization.

30112302120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250935865 (or 250935861 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30112302120 its reverse (2120321103), we get a palindrome (32232623223).

The spelling of 30112302120 in words is "thirty billion, one hundred twelve million, three hundred two thousand, one hundred twenty".