212003103123 has 12 divisors (see below), whose sum is σ = 349973376688. Its totient is φ = 121144630320.

The previous prime is 212003103119. The next prime is 212003103133. The reversal of 212003103123 is 321301300212.

212003103123 is a `hidden beast` number, since 21 + 20 + 0 + 310 + 312 + 3 = 666.

212003103123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212003103123 - 2² = 212003103119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212003103096 and 212003103105.

It is not an unprimeable number, because it can be changed into a prime (212003103133) by changing a digit.

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, 1682564248 + ... + 1682564373.

Almost surely, 2^212003103123 is an apocalyptic number.

212003103123 is a deficient number, since it is larger than the sum of its proper divisors (137970273565).

212003103123 is a wasteful number, since it uses less digits than its factorization.

212003103123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365128634 (or 3365128631 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 212003103123 its reverse (321301300212), we get a palindrome (533304403335).

The spelling of 212003103123 in words is "two hundred twelve billion, three million, one hundred three thousand, one hundred twenty-three".