212030202123 has 8 divisors (see below), whose sum is σ = 314118818000. Its totient is φ = 141353468064.

The previous prime is 212030202121. The next prime is 212030202191. The reversal of 212030202123 is 321202030212.

212030202123 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 212030202123 - 2¹ = 212030202121 is a prime.

It is a super-2 number, since 2×212030202123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212030202096 and 212030202105.

It is not an unprimeable number, because it can be changed into a prime (212030202121) 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 7 ways as a sum of consecutive naturals, for example, 3926485198 + ... + 3926485251.

It is an arithmetic number, because the mean of its divisors is an integer number (39264852250).

Almost surely, 2^212030202123 is an apocalyptic number.

212030202123 is a deficient number, since it is larger than the sum of its proper divisors (102088615877).

212030202123 is an equidigital number, since it uses as much as digits as its factorization.

212030202123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7852970458 (or 7852970452 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212030202123 its reverse (321202030212), we get a palindrome (533232232335).

The spelling of 212030202123 in words is "two hundred twelve billion, thirty million, two hundred two thousand, one hundred twenty-three".