20010211111073 has 2 divisors, whose sum is σ = 20010211111074. Its totient is φ = 20010211111072.

The previous prime is 20010211111049. The next prime is 20010211111157. The reversal of 20010211111073 is 37011111201002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20010126599824 + 84511249 = 4473268^2 + 9193^2 .

It is a cyclic number.

It is not a de Polignac number, because 20010211111073 - 2¹⁰ = 20010211110049 is a prime.

It is a super-2 number, since 2×20010211111073² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20010211111873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005105555536 + 10005105555537.

It is an arithmetic number, because the mean of its divisors is an integer number (10005105555537).

Almost surely, 2^{20010211111073} is an apocalyptic number.

It is an amenable number.

20010211111073 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010211111073 is an equidigital number, since it uses as much as digits as its factorization.

20010211111073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 20.

Adding to 20010211111073 its reverse (37011111201002), we get a palindrome (57021322312075).

The spelling of 20010211111073 in words is "twenty trillion, ten billion, two hundred eleven million, one hundred eleven thousand, seventy-three".