3331011997 has 2 divisors, whose sum is σ = 3331011998. Its totient is φ = 3331011996.

The previous prime is 3331011991. The next prime is 3331012001. The reversal of 3331011997 is 7991101333.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2406000601 + 925011396 = 49051^2 + 30414^2 .

It is a cyclic number.

It is not a de Polignac number, because 3331011997 - 2¹¹ = 3331009949 is a prime.

It is a super-2 number, since 2×3331011997² = 22191281848315856018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3331011991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1665505998 + 1665505999.

It is an arithmetic number, because the mean of its divisors is an integer number (1665505999).

Almost surely, 2^3331011997 is an apocalyptic number.

It is an amenable number.

3331011997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3331011997 is an equidigital number, since it uses as much as digits as its factorization.

3331011997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15309, while the sum is 37.

The square root of 3331011997 is about 57714.9200553895. The cubic root of 3331011997 is about 1493.4547400708.

The spelling of 3331011997 in words is "three billion, three hundred thirty-one million, eleven thousand, nine hundred ninety-seven".