2112123002123 has 8 divisors (see below), whose sum is σ = 2122927606800. Its totient is φ = 2101319237920.

The previous prime is 2112123002071. The next prime is 2112123002137. The reversal of 2112123002123 is 3212003212112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112123002123 - 2¹⁶ = 2112122936587 is a prime.

It is a super-2 number, since 2×2112123002123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112123002095 and 2112123002104.

It is not an unprimeable number, because it can be changed into a prime (2112123002183) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5181533 + ... + 5574273.

It is an arithmetic number, because the mean of its divisors is an integer number (265365950850).

Almost surely, 2^{2112123002123} is an apocalyptic number.

2112123002123 is a deficient number, since it is larger than the sum of its proper divisors (10804604677).

2112123002123 is a wasteful number, since it uses less digits than its factorization.

2112123002123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420237.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2112123002123 its reverse (3212003212112), we get a palindrome (5324126214235).

The spelling of 2112123002123 in words is "two trillion, one hundred twelve billion, one hundred twenty-three million, two thousand, one hundred twenty-three".