2112313123212 has 12 divisors (see below), whose sum is σ = 4928730620856. Its totient is φ = 704104374400.

The previous prime is 2112313123201. The next prime is 2112313123259. The reversal of 2112313123212 is 2123213132112.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88013046789 + ... + 88013046812.

It is an arithmetic number, because the mean of its divisors is an integer number (410727551738).

Almost surely, 2^{2112313123212} is an apocalyptic number.

It is an amenable number.

2112313123212 is an abundant number, since it is smaller than the sum of its proper divisors (2816417497644).

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

2112313123212 is a wasteful number, since it uses less digits than its factorization.

2112313123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176026093608 (or 176026093606 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

Adding to 2112313123212 its reverse (2123213132112), we get a palindrome (4235526255324).

The spelling of 2112313123212 in words is "two trillion, one hundred twelve billion, three hundred thirteen million, one hundred twenty-three thousand, two hundred twelve".