212023423144 has 16 divisors (see below), whose sum is σ = 428124220020. Its totient is φ = 97856964480.

The previous prime is 212023423049. The next prime is 212023423177. The reversal of 212023423144 is 441324320212.

212023423144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 206444827044 + 5578596100 = 454362^2 + 74690^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1019343277 + ... + 1019343484.

Almost surely, 2^212023423144 is an apocalyptic number.

It is an amenable number.

212023423144 is an abundant number, since it is smaller than the sum of its proper divisors (216100796876).

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

212023423144 is a wasteful number, since it uses less digits than its factorization.

212023423144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038686780 (or 2038686776 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 212023423144 its reverse (441324320212), we get a palindrome (653347743356).

The spelling of 212023423144 in words is "two hundred twelve billion, twenty-three million, four hundred twenty-three thousand, one hundred forty-four".