212023103123 has 16 divisors (see below), whose sum is σ = 236422677120. Its totient is φ = 188791634304.

The previous prime is 212023103113. The next prime is 212023103207. The reversal of 212023103123 is 321301320212.

It is not a de Polignac number, because 212023103123 - 2⁴ = 212023103107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212023103095 and 212023103104.

It is not an unprimeable number, because it can be changed into a prime (212023103113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154790 + ... + 669332.

It is an arithmetic number, because the mean of its divisors is an integer number (14776417320).

Almost surely, 2^212023103123 is an apocalyptic number.

212023103123 is a deficient number, since it is larger than the sum of its proper divisors (24399573997).

212023103123 is a wasteful number, since it uses less digits than its factorization.

212023103123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515678.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212023103123 its reverse (321301320212), we get a palindrome (533324423335).

The spelling of 212023103123 in words is "two hundred twelve billion, twenty-three million, one hundred three thousand, one hundred twenty-three".