3201020989 has 2 divisors, whose sum is σ = 3201020990. Its totient is φ = 3201020988.

The previous prime is 3201020969. The next prime is 3201021037. The reversal of 3201020989 is 9890201023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2566232964 + 634788025 = 50658^2 + 25195^2 .

It is a cyclic number.

It is not a de Polignac number, because 3201020989 - 2⁹ = 3201020477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3201020939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1600510494 + 1600510495.

It is an arithmetic number, because the mean of its divisors is an integer number (1600510495).

Almost surely, 2^3201020989 is an apocalyptic number.

It is an amenable number.

3201020989 is a deficient number, since it is larger than the sum of its proper divisors (1).

3201020989 is an equidigital number, since it uses as much as digits as its factorization.

3201020989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 3201020989 is about 56577.5661282809. The cubic root of 3201020989 is about 1473.7693059426.

The spelling of 3201020989 in words is "three billion, two hundred one million, twenty thousand, nine hundred eighty-nine".