20042243003 has 2 divisors, whose sum is σ = 20042243004. Its totient is φ = 20042243002.

The previous prime is 20042242963. The next prime is 20042243027. The reversal of 20042243003 is 30034224002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20042243003 - 2¹² = 20042238907 is a prime.

It is not a weakly prime, because it can be changed into another prime (20042213003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021121501 + 10021121502.

It is an arithmetic number, because the mean of its divisors is an integer number (10021121502).

Almost surely, 2^20042243003 is an apocalyptic number.

20042243003 is a deficient number, since it is larger than the sum of its proper divisors (1).

20042243003 is an equidigital number, since it uses as much as digits as its factorization.

20042243003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 20042243003 its reverse (30034224002), we get a palindrome (50076467005).

The spelling of 20042243003 in words is "twenty billion, forty-two million, two hundred forty-three thousand, three".