30032112120 has 128 divisors (see below), whose sum is σ = 95143507200. Its totient is φ = 7562640384.

The previous prime is 30032112107. The next prime is 30032112157. The reversal of 30032112120 is 2121123003.

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 30032112120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 692599 + ... + 734681.

It is an arithmetic number, because the mean of its divisors is an integer number (743308650).

Almost surely, 2^30032112120 is an apocalyptic number.

30032112120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30032112120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47571753600).

30032112120 is an abundant number, since it is smaller than the sum of its proper divisors (65111395080).

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

30032112120 is a wasteful number, since it uses less digits than its factorization.

30032112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42429 (or 42425 counting only the distinct ones).

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

Adding to 30032112120 its reverse (2121123003), we get a palindrome (32153235123).

The spelling of 30032112120 in words is "thirty billion, thirty-two million, one hundred twelve thousand, one hundred twenty".