120030312112 has 80 divisors (see below), whose sum is σ = 253683763200. Its totient is φ = 54807183360.

The previous prime is 120030312107. The next prime is 120030312113. The reversal of 120030312112 is 211213030021.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (120030312113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2397189 + ... + 2446747.

It is an arithmetic number, because the mean of its divisors is an integer number (3171047040).

Almost surely, 2^120030312112 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 120030312112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126841881600).

120030312112 is an abundant number, since it is smaller than the sum of its proper divisors (133653451088).

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

120030312112 is a wasteful number, since it uses less digits than its factorization.

120030312112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49874 (or 49868 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 120030312112 its reverse (211213030021), we get a palindrome (331243342133).

The spelling of 120030312112 in words is "one hundred twenty billion, thirty million, three hundred twelve thousand, one hundred twelve".