2020819445101 has 2 divisors, whose sum is σ = 2020819445102. Its totient is φ = 2020819445100.

The previous prime is 2020819444999. The next prime is 2020819445111. The reversal of 2020819445101 is 1015449180202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1846266783076 + 174552662025 = 1358774^2 + 417795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020819445101 is a prime.

It is a super-2 number, since 2×2020819445101² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020819445111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010409722550 + 1010409722551.

It is an arithmetic number, because the mean of its divisors is an integer number (1010409722551).

Almost surely, 2^{2020819445101} is an apocalyptic number.

It is an amenable number.

2020819445101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020819445101 is an equidigital number, since it uses as much as digits as its factorization.

2020819445101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 37.

The spelling of 2020819445101 in words is "two trillion, twenty billion, eight hundred nineteen million, four hundred forty-five thousand, one hundred one".