2102123322312 has 64 divisors (see below), whose sum is σ = 5842129359360. Its totient is φ = 625942425600.

The previous prime is 2102123322293. The next prime is 2102123322319. The reversal of 2102123322312 is 2132233212012.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2102123322319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108660889 + ... + 108680232.

It is an arithmetic number, because the mean of its divisors is an integer number (91283271240).

Almost surely, 2^{2102123322312} is an apocalyptic number.

It is an amenable number.

2102123322312 is an abundant number, since it is smaller than the sum of its proper divisors (3740006037048).

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

2102123322312 is a wasteful number, since it uses less digits than its factorization.

2102123322312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217341174 (or 217341170 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 2102123322312 its reverse (2132233212012), we get a palindrome (4234356534324).

The spelling of 2102123322312 in words is "two trillion, one hundred two billion, one hundred twenty-three million, three hundred twenty-two thousand, three hundred twelve".