30120312031120 has 80 divisors (see below), whose sum is σ = 70420646383920. Its totient is φ = 11981040556032.

The previous prime is 30120312031079. The next prime is 30120312031123. The reversal of 30120312031120 is 2113021302103.

It can be written as a sum of positive squares in 8 ways, for example, as 6199761364624 + 23920550666496 = 2489932^2 + 4890864^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (30120312031123) 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, 9944254 + ... + 12614626.

It is an arithmetic number, because the mean of its divisors is an integer number (880258079799).

Almost surely, 2^{30120312031120} is an apocalyptic number.

It is an amenable number.

30120312031120 is an abundant number, since it is smaller than the sum of its proper divisors (40300334352800).

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

30120312031120 is a wasteful number, since it uses less digits than its factorization.

30120312031120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671172 (or 2671166 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 30120312031120 its reverse (2113021302103), we get a palindrome (32233333333223).

The spelling of 30120312031120 in words is "thirty trillion, one hundred twenty billion, three hundred twelve million, thirty-one thousand, one hundred twenty".