203123224212 has 12 divisors (see below), whose sum is σ = 473954189856. Its totient is φ = 67707741400.

The previous prime is 203123224193. The next prime is 203123224223. The reversal of 203123224212 is 212422321302.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8463467664 + ... + 8463467687.

It is an arithmetic number, because the mean of its divisors is an integer number (39496182488).

Almost surely, 2^203123224212 is an apocalyptic number.

It is an amenable number.

203123224212 is an abundant number, since it is smaller than the sum of its proper divisors (270830965644).

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

203123224212 is a wasteful number, since it uses less digits than its factorization.

203123224212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16926935358 (or 16926935356 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 203123224212 its reverse (212422321302), we get a palindrome (415545545514).

The spelling of 203123224212 in words is "two hundred three billion, one hundred twenty-three million, two hundred twenty-four thousand, two hundred twelve".