30012320312120 has 32 divisors (see below), whose sum is σ = 67704033323520. Its totient is φ = 11973583658880.

The previous prime is 30012320312099. The next prime is 30012320312137. The reversal of 30012320312120 is 2121302321003.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30012320312092 and 30012320312101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 979499051 + ... + 979529690.

It is an arithmetic number, because the mean of its divisors is an integer number (2115751041360).

Almost surely, 2^{30012320312120} is an apocalyptic number.

It is an amenable number.

30012320312120 is an abundant number, since it is smaller than the sum of its proper divisors (37691713011400).

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

30012320312120 is a wasteful number, since it uses less digits than its factorization.

30012320312120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1959029135 (or 1959029131 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30012320312120 its reverse (2121302321003), we get a palindrome (32133622633123).

The spelling of 30012320312120 in words is "thirty trillion, twelve billion, three hundred twenty million, three hundred twelve thousand, one hundred twenty".