3321313081 has 2 divisors, whose sum is σ = 3321313082. Its totient is φ = 3321313080.

The previous prime is 3321313067. The next prime is 3321313109. The reversal of 3321313081 is 1803131233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3108620025 + 212693056 = 55755^2 + 14584^2 .

It is an emirp because it is prime and its reverse (1803131233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3321313081 - 2⁵ = 3321313049 is a prime.

It is a super-2 number, since 2×3321313081² = 22062241164043425122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3321323081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1660656540 + 1660656541.

It is an arithmetic number, because the mean of its divisors is an integer number (1660656541).

Almost surely, 2^3321313081 is an apocalyptic number.

It is an amenable number.

3321313081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3321313081 is an equidigital number, since it uses as much as digits as its factorization.

3321313081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 3321313081 is about 57630.8344638528. The cubic root of 3321313081 is about 1492.0038323148.

The spelling of 3321313081 in words is "three billion, three hundred twenty-one million, three hundred thirteen thousand, eighty-one".