30312113211012 has 24 divisors (see below), whose sum is σ = 70731187130016. Its totient is φ = 10103620169728.

The previous prime is 30312113211007. The next prime is 30312113211047. The reversal of 30312113211012 is 21011231121303.

It is a self number, because there is not a number n which added to its sum of digits gives 30312113211012.

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, 51893373 + ... + 52474244.

It is an arithmetic number, because the mean of its divisors is an integer number (2947132797084).

Almost surely, 2^{30312113211012} is an apocalyptic number.

It is an amenable number.

30312113211012 is an abundant number, since it is smaller than the sum of its proper divisors (40419073919004).

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

30312113211012 is a wasteful number, since it uses less digits than its factorization.

30312113211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104391827 (or 104391825 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 30312113211012 its reverse (21011231121303), we get a palindrome (51323344332315).

The spelling of 30312113211012 in words is "thirty trillion, three hundred twelve billion, one hundred thirteen million, two hundred eleven thousand, twelve".