20021102001983 has 2 divisors, whose sum is σ = 20021102001984. Its totient is φ = 20021102001982.

The previous prime is 20021102001977. The next prime is 20021102002009. The reversal of 20021102001983 is 38910020112002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20021102001983 - 2²⁸ = 20020833566527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20021102001683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010551000991 + 10010551000992.

It is an arithmetic number, because the mean of its divisors is an integer number (10010551000992).

Almost surely, 2^{20021102001983} is an apocalyptic number.

20021102001983 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021102001983 is an equidigital number, since it uses as much as digits as its factorization.

20021102001983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

Adding to 20021102001983 its reverse (38910020112002), we get a palindrome (58931122113985).

The spelling of 20021102001983 in words is "twenty trillion, twenty-one billion, one hundred two million, one thousand, nine hundred eighty-three".