30312121110012 has 36 divisors (see below), whose sum is σ = 87568349874096. Its totient is φ = 8660606031360.

The previous prime is 30312121109971. The next prime is 30312121110119. The reversal of 30312121110012 is 21001112121303.

30312121110012 is a `hidden beast` number, since 30 + 312 + 1 + 211 + 100 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×30312121110012³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60143097189 + ... + 60143097692.

Almost surely, 2^{30312121110012} is an apocalyptic number.

It is an amenable number.

30312121110012 is an abundant number, since it is smaller than the sum of its proper divisors (57256228764084).

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

30312121110012 is a wasteful number, since it uses less digits than its factorization.

30312121110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120286194898 (or 120286194893 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 30312121110012 its reverse (21001112121303), we get a palindrome (51313233231315).

The spelling of 30312121110012 in words is "thirty trillion, three hundred twelve billion, one hundred twenty-one million, one hundred ten thousand, twelve".