20042243027 has 2 divisors, whose sum is σ = 20042243028. Its totient is φ = 20042243026.

The previous prime is 20042243003. The next prime is 20042243047. The reversal of 20042243027 is 72034224002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20042243027 - 2⁶ = 20042242963 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20042242987 and 20042243005.

It is not a weakly prime, because it can be changed into another prime (20042243047) 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 as a sum of consecutive naturals, namely, 10021121513 + 10021121514.

It is an arithmetic number, because the mean of its divisors is an integer number (10021121514).

Almost surely, 2^20042243027 is an apocalyptic number.

20042243027 is a deficient number, since it is larger than the sum of its proper divisors (1).

20042243027 is an equidigital number, since it uses as much as digits as its factorization.

20042243027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 26.

Adding to 20042243027 its reverse (72034224002), we get a palindrome (92076467029).

The spelling of 20042243027 in words is "twenty billion, forty-two million, two hundred forty-three thousand, twenty-seven".