203212103122 has 24 divisors (see below), whose sum is σ = 354768152076. Its totient is φ = 87045765408.

The previous prime is 203212102997. The next prime is 203212103161. The reversal of 203212103122 is 221301212302.

203212103122 is digitally balanced in base 2, 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 194005892521 + 9206210601 = 440461^2 + 95949^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 203212103122.

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 11 ways as a sum of consecutive naturals, for example, 346933 + ... + 725800.

Almost surely, 2^203212103122 is an apocalyptic number.

203212103122 is a deficient number, since it is larger than the sum of its proper divisors (151556048954).

203212103122 is a wasteful number, since it uses less digits than its factorization.

203212103122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074682 (or 1074675 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 203212103122 its reverse (221301212302), we get a palindrome (424513315424).

The spelling of 203212103122 in words is "two hundred three billion, two hundred twelve million, one hundred three thousand, one hundred twenty-two".