212002330123 has 4 divisors (see below), whose sum is σ = 212044710168. Its totient is φ = 211959950080.

The previous prime is 212002330093. The next prime is 212002330129. The reversal of 212002330123 is 321033200212.

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 212002330123 - 2¹³ = 212002321931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212002330123.

It is not an unprimeable number, because it can be changed into a prime (212002330129) 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, 21182518 + ... + 21192523.

It is an arithmetic number, because the mean of its divisors is an integer number (53011177542).

Almost surely, 2^212002330123 is an apocalyptic number.

212002330123 is a deficient number, since it is larger than the sum of its proper divisors (42380045).

212002330123 is an equidigital number, since it uses as much as digits as its factorization.

212002330123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42380044.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 212002330123 its reverse (321033200212), we get a palindrome (533035530335).

The spelling of 212002330123 in words is "two hundred twelve billion, two million, three hundred thirty thousand, one hundred twenty-three".