212113430030123 has 4 divisors (see below), whose sum is σ = 212128112222880. Its totient is φ = 212098747837368.

The previous prime is 212113430030093. The next prime is 212113430030129. The reversal of 212113430030123 is 321030034311212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212113430030123 - 2⁸ = 212113430029867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212113430030092 and 212113430030101.

It is not an unprimeable number, because it can be changed into a prime (212113430030129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7341074708 + ... + 7341103601.

It is an arithmetic number, because the mean of its divisors is an integer number (53032028055720).

Almost surely, 2^{212113430030123} is an apocalyptic number.

212113430030123 is a deficient number, since it is larger than the sum of its proper divisors (14682192757).

212113430030123 is a wasteful number, since it uses less digits than its factorization.

212113430030123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14682192756.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 212113430030123 its reverse (321030034311212), we get a palindrome (533143464341335).

The spelling of 212113430030123 in words is "two hundred twelve trillion, one hundred thirteen billion, four hundred thirty million, thirty thousand, one hundred twenty-three".