20043123203 has 2 divisors, whose sum is σ = 20043123204. Its totient is φ = 20043123202.

The previous prime is 20043123179. The next prime is 20043123211. The reversal of 20043123203 is 30232134002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20043123203 is a prime.

It is not a weakly prime, because it can be changed into another prime (20043123223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021561601 + 10021561602.

It is an arithmetic number, because the mean of its divisors is an integer number (10021561602).

Almost surely, 2^20043123203 is an apocalyptic number.

20043123203 is a deficient number, since it is larger than the sum of its proper divisors (1).

20043123203 is an equidigital number, since it uses as much as digits as its factorization.

20043123203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20043123203 its reverse (30232134002), we get a palindrome (50275257205).

The spelling of 20043123203 in words is "twenty billion, forty-three million, one hundred twenty-three thousand, two hundred three".