212000442123 has 8 divisors (see below), whose sum is σ = 290306911888. Its totient is φ = 137513800224.

The previous prime is 212000442119. The next prime is 212000442151. The reversal of 212000442123 is 321244000212.

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

It is not a de Polignac number, because 212000442123 - 2² = 212000442119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212000442123.

It is not an unprimeable number, because it can be changed into a prime (212000442023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 954956836 + ... + 954957057.

It is an arithmetic number, because the mean of its divisors is an integer number (36288363986).

Almost surely, 2^212000442123 is an apocalyptic number.

212000442123 is a deficient number, since it is larger than the sum of its proper divisors (78306469765).

212000442123 is a wasteful number, since it uses less digits than its factorization.

212000442123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909913933.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 212000442123 its reverse (321244000212), we get a palindrome (533244442335).

The spelling of 212000442123 in words is "two hundred twelve billion, four hundred forty-two thousand, one hundred twenty-three".