2020211323121 has 2 divisors, whose sum is σ = 2020211323122. Its totient is φ = 2020211323120.

The previous prime is 2020211323099. The next prime is 2020211323153. The reversal of 2020211323121 is 1213231120202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1362206442496 + 658004880625 = 1167136^2 + 811175^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020211323121 - 2¹⁸ = 2020211060977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2020211323093 and 2020211323102.

It is not a weakly prime, because it can be changed into another prime (2020211023121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010105661560 + 1010105661561.

It is an arithmetic number, because the mean of its divisors is an integer number (1010105661561).

Almost surely, 2^{2020211323121} is an apocalyptic number.

It is an amenable number.

2020211323121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020211323121 is an equidigital number, since it uses as much as digits as its factorization.

2020211323121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2020211323121 its reverse (1213231120202), we get a palindrome (3233442443323).

The spelling of 2020211323121 in words is "two trillion, twenty billion, two hundred eleven million, three hundred twenty-three thousand, one hundred twenty-one".