20005220505383 has 2 divisors, whose sum is σ = 20005220505384. Its totient is φ = 20005220505382.

The previous prime is 20005220505329. The next prime is 20005220505407. The reversal of 20005220505383 is 38350502250002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20005220505383 - 2²² = 20005216311079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20005220504383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10002610252691 + 10002610252692.

It is an arithmetic number, because the mean of its divisors is an integer number (10002610252692).

Almost surely, 2^{20005220505383} is an apocalyptic number.

20005220505383 is a deficient number, since it is larger than the sum of its proper divisors (1).

20005220505383 is an equidigital number, since it uses as much as digits as its factorization.

20005220505383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 20005220505383 its reverse (38350502250002), we get a palindrome (58355722755385).

The spelling of 20005220505383 in words is "twenty trillion, five billion, two hundred twenty million, five hundred five thousand, three hundred eighty-three".