30111032120 has 64 divisors (see below), whose sum is σ = 73114272000. Its totient is φ = 11094617088.

The previous prime is 30111032113. The next prime is 30111032141. The reversal of 30111032120 is 2123011103.

It is a junction number, because it is equal to n+sod(n) for n = 30111032095 and 30111032104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188636 + ... + 309524.

It is an arithmetic number, because the mean of its divisors is an integer number (1142410500).

Almost surely, 2^30111032120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30111032120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36557136000).

30111032120 is an abundant number, since it is smaller than the sum of its proper divisors (43003239880).

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

30111032120 is a wasteful number, since it uses less digits than its factorization.

30111032120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121392 (or 121388 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30111032120 its reverse (2123011103), we get a palindrome (32234043223).

The spelling of 30111032120 in words is "thirty billion, one hundred eleven million, thirty-two thousand, one hundred twenty".