3311221313 has 2 divisors, whose sum is σ = 3311221314. Its totient is φ = 3311221312.

The previous prime is 3311221307. The next prime is 3311221379. The reversal of 3311221313 is 3131221133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2291824129 + 1019397184 = 47873^2 + 31928^2 .

It is an emirp because it is prime and its reverse (3131221133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3311221313 - 2²⁰ = 3310172737 is a prime.

It is a super-3 number, since 3×3311221313³ (a number of 30 digits) contains 333 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 (3311226313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1655610656 + 1655610657.

It is an arithmetic number, because the mean of its divisors is an integer number (1655610657).

Almost surely, 2^3311221313 is an apocalyptic number.

It is an amenable number.

3311221313 is a deficient number, since it is larger than the sum of its proper divisors (1).

3311221313 is an equidigital number, since it uses as much as digits as its factorization.

3311221313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 20.

The square root of 3311221313 is about 57543.2125710757. The cubic root of 3311221313 is about 1490.4911542381.

Adding to 3311221313 its reverse (3131221133), we get a palindrome (6442442446).

The spelling of 3311221313 in words is "three billion, three hundred eleven million, two hundred twenty-one thousand, three hundred thirteen".