212430042223 has 16 divisors (see below), whose sum is σ = 245611319040. Its totient is φ = 179959070016.

The previous prime is 212430042211. The next prime is 212430042257. The reversal of 212430042223 is 322240034212.

It is a cyclic number.

It is not a de Polignac number, because 212430042223 - 2⁵ = 212430042191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212430042323) 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, 1389540 + ... + 1534822.

It is an arithmetic number, because the mean of its divisors is an integer number (15350707440).

Almost surely, 2^212430042223 is an apocalyptic number.

212430042223 is a deficient number, since it is larger than the sum of its proper divisors (33181276817).

212430042223 is a wasteful number, since it uses less digits than its factorization.

212430042223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147726.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 212430042223 its reverse (322240034212), we get a palindrome (534670076435).

The spelling of 212430042223 in words is "two hundred twelve billion, four hundred thirty million, forty-two thousand, two hundred twenty-three".