2123143422112 has 96 divisors (see below), whose sum is σ = 4437222530832. Its totient is φ = 996554686464.

The previous prime is 2123143422073. The next prime is 2123143422157. The reversal of 2123143422112 is 2112243413212.

It can be written as a sum of positive squares in 8 ways, for example, as 1447584360336 + 675559061776 = 1203156^2 + 821924^2 .

It is an unprimeable number.

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, 622073718 + ... + 622077130.

Almost surely, 2^{2123143422112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123143422112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2218611265416).

2123143422112 is an abundant number, since it is smaller than the sum of its proper divisors (2314079108720).

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

2123143422112 is a wasteful number, since it uses less digits than its factorization.

2123143422112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6050 (or 6042 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

Adding to 2123143422112 its reverse (2112243413212), we get a palindrome (4235386835324).

The spelling of 2123143422112 in words is "two trillion, one hundred twenty-three billion, one hundred forty-three million, four hundred twenty-two thousand, one hundred twelve".