2020112101181 has 2 divisors, whose sum is σ = 2020112101182. Its totient is φ = 2020112101180.

The previous prime is 2020112101171. The next prime is 2020112101223. The reversal of 2020112101181 is 1811012110202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1986436548100 + 33675553081 = 1409410^2 + 183509^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020112101181 - 2³⁸ = 1745234194237 is a prime.

It is a super-2 number, since 2×2020112101181² (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 (2020112101121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010056050590 + 1010056050591.

It is an arithmetic number, because the mean of its divisors is an integer number (1010056050591).

Almost surely, 2^{2020112101181} is an apocalyptic number.

It is an amenable number.

2020112101181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020112101181 is an equidigital number, since it uses as much as digits as its factorization.

2020112101181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 2020112101181 its reverse (1811012110202), we get a palindrome (3831124211383).

The spelling of 2020112101181 in words is "two trillion, twenty billion, one hundred twelve million, one hundred one thousand, one hundred eighty-one".