20042254703203 has 2 divisors, whose sum is σ = 20042254703204. Its totient is φ = 20042254703202.

The previous prime is 20042254703183. The next prime is 20042254703363. The reversal of 20042254703203 is 30230745224002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20042254703203 - 2¹³ = 20042254695011 is a prime.

It is not a weakly prime, because it can be changed into another prime (20042254703803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021127351601 + 10021127351602.

It is an arithmetic number, because the mean of its divisors is an integer number (10021127351602).

Almost surely, 2^{20042254703203} is an apocalyptic number.

20042254703203 is a deficient number, since it is larger than the sum of its proper divisors (1).

20042254703203 is an equidigital number, since it uses as much as digits as its factorization.

20042254703203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 34.

Adding to 20042254703203 its reverse (30230745224002), we get a palindrome (50272999927205).

The spelling of 20042254703203 in words is "twenty trillion, forty-two billion, two hundred fifty-four million, seven hundred three thousand, two hundred three".