20042422400423 has 2 divisors, whose sum is σ = 20042422400424. Its totient is φ = 20042422400422.

The previous prime is 20042422400369. The next prime is 20042422400479. The reversal of 20042422400423 is 32400422424002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20042422400423 - 2⁸ = 20042422400167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20042422450423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021211200211 + 10021211200212.

It is an arithmetic number, because the mean of its divisors is an integer number (10021211200212).

Almost surely, 2^{20042422400423} is an apocalyptic number.

20042422400423 is a deficient number, since it is larger than the sum of its proper divisors (1).

20042422400423 is an equidigital number, since it uses as much as digits as its factorization.

20042422400423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 20042422400423 its reverse (32400422424002), we get a palindrome (52442844824425).

The spelling of 20042422400423 in words is "twenty trillion, forty-two billion, four hundred twenty-two million, four hundred thousand, four hundred twenty-three".