43123122203 has 4 divisors (see below), whose sum is σ = 49283568240. Its totient is φ = 36962676168.

The previous prime is 43123122191. The next prime is 43123122221. The reversal of 43123122203 is 30222132134.

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 43123122203 - 2¹⁶ = 43123056667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43123121203) 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, 3080223008 + ... + 3080223021.

It is an arithmetic number, because the mean of its divisors is an integer number (12320892060).

Almost surely, 2^43123122203 is an apocalyptic number.

43123122203 is a deficient number, since it is larger than the sum of its proper divisors (6160446037).

43123122203 is an equidigital number, since it uses as much as digits as its factorization.

43123122203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6160446036.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 43123122203 its reverse (30222132134), we get a palindrome (73345254337).

The spelling of 43123122203 in words is "forty-three billion, one hundred twenty-three million, one hundred twenty-two thousand, two hundred three".