3030920681 has 2 divisors, whose sum is σ = 3030920682. Its totient is φ = 3030920680.

The previous prime is 3030920677. The next prime is 3030920687. The reversal of 3030920681 is 1860290303.

3030920681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1958947600 + 1071973081 = 44260^2 + 32741^2 .

It is an emirp because it is prime and its reverse (1860290303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3030920681 - 2² = 3030920677 is a prime.

It is a super-2 number, since 2×3030920681² = 18372960349027007522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3030920687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515460340 + 1515460341.

It is an arithmetic number, because the mean of its divisors is an integer number (1515460341).

Almost surely, 2^3030920681 is an apocalyptic number.

It is an amenable number.

3030920681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3030920681 is an equidigital number, since it uses as much as digits as its factorization.

3030920681 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 32.

The square root of 3030920681 is about 55053.7980615325. The cubic root of 3030920681 is about 1447.1876810930.

The spelling of 3030920681 in words is "three billion, thirty million, nine hundred twenty thousand, six hundred eighty-one".