30111002120 has 16 divisors (see below), whose sum is σ = 67749754860. Its totient is φ = 12044400832.

The previous prime is 30111002111. The next prime is 30111002143. The reversal of 30111002120 is 2120011103.

It can be written as a sum of positive squares in 2 ways, for example, as 29868826276 + 242175844 = 172826^2 + 15562^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 376387487 + ... + 376387566.

Almost surely, 2^30111002120 is an apocalyptic number.

It is an amenable number.

30111002120 is an abundant number, since it is smaller than the sum of its proper divisors (37638752740).

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

30111002120 is a wasteful number, since it uses less digits than its factorization.

30111002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752775064 (or 752775060 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 30111002120 its reverse (2120011103), we get a palindrome (32231013223).

The spelling of 30111002120 in words is "thirty billion, one hundred eleven million, two thousand, one hundred twenty".