43123042223 has 4 divisors (see below), whose sum is σ = 43313011800. Its totient is φ = 42933072648.

The previous prime is 43123042201. The next prime is 43123042229. The reversal of 43123042223 is 32224032134.

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 43123042223 - 2⁶ = 43123042159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43123042192 and 43123042201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43123042229) 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 3 ways as a sum of consecutive naturals, for example, 94984448 + ... + 94984901.

It is an arithmetic number, because the mean of its divisors is an integer number (10828252950).

Almost surely, 2^43123042223 is an apocalyptic number.

43123042223 is a deficient number, since it is larger than the sum of its proper divisors (189969577).

43123042223 is a wasteful number, since it uses less digits than its factorization.

43123042223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189969576.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 43123042223 its reverse (32224032134), we get a palindrome (75347074357).

The spelling of 43123042223 in words is "forty-three billion, one hundred twenty-three million, forty-two thousand, two hundred twenty-three".