3233201981 has 2 divisors, whose sum is σ = 3233201982. Its totient is φ = 3233201980.

The previous prime is 3233201929. The next prime is 3233201989. The reversal of 3233201981 is 1891023323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3217725625 + 15476356 = 56725^2 + 3934^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3233201981 is a prime.

It is a super-2 number, since 2×3233201981² = 20907190099884648722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3233201989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1616600990 + 1616600991.

It is an arithmetic number, because the mean of its divisors is an integer number (1616600991).

Almost surely, 2^3233201981 is an apocalyptic number.

It is an amenable number.

3233201981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3233201981 is an equidigital number, since it uses as much as digits as its factorization.

3233201981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 3233201981 is about 56861.2520175207. The cubic root of 3233201981 is about 1478.6916214094.

The spelling of 3233201981 in words is "three billion, two hundred thirty-three million, two hundred one thousand, nine hundred eighty-one".