3381012781 has 2 divisors, whose sum is σ = 3381012782. Its totient is φ = 3381012780.

The previous prime is 3381012749. The next prime is 3381012827. The reversal of 3381012781 is 1872101833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3222378756 + 158634025 = 56766^2 + 12595^2 .

It is a cyclic number.

It is not a de Polignac number, because 3381012781 - 2⁵ = 3381012749 is a prime.

It is a super-2 number, since 2×3381012781² = 22862494850570707922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3381012721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1690506390 + 1690506391.

It is an arithmetic number, because the mean of its divisors is an integer number (1690506391).

Almost surely, 2^3381012781 is an apocalyptic number.

It is an amenable number.

3381012781 is a deficient number, since it is larger than the sum of its proper divisors (1).

3381012781 is an equidigital number, since it uses as much as digits as its factorization.

3381012781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 3381012781 is about 58146.4769440075. The cubic root of 3381012781 is about 1500.8902538978.

The spelling of 3381012781 in words is "three billion, three hundred eighty-one million, twelve thousand, seven hundred eighty-one".