2068443121 has 2 divisors, whose sum is σ = 2068443122. Its totient is φ = 2068443120.

The previous prime is 2068443109. The next prime is 2068443161. The reversal of 2068443121 is 1213448602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1790220721 + 278222400 = 42311^2 + 16680^2 .

It is a cyclic number.

It is not a de Polignac number, because 2068443121 - 2¹⁷ = 2068312049 is a prime.

It is not a weakly prime, because it can be changed into another prime (2068443161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1034221560 + 1034221561.

It is an arithmetic number, because the mean of its divisors is an integer number (1034221561).

Almost surely, 2^2068443121 is an apocalyptic number.

It is an amenable number.

2068443121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2068443121 is an equidigital number, since it uses as much as digits as its factorization.

2068443121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 2068443121 is about 45480.1398524675. The cubic root of 2068443121 is about 1274.1323064136.

The spelling of 2068443121 in words is "two billion, sixty-eight million, four hundred forty-three thousand, one hundred twenty-one".