3321131993 has 2 divisors, whose sum is σ = 3321131994. Its totient is φ = 3321131992.

The previous prime is 3321131987. The next prime is 3321132041. The reversal of 3321131993 is 3991311233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2709410704 + 611721289 = 52052^2 + 24733^2 .

It is a cyclic number.

It is not a de Polignac number, because 3321131993 - 2¹² = 3321127897 is a prime.

It is a super-2 number, since 2×3321131993² = 22059835429856304098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3321131953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1660565996 + 1660565997.

It is an arithmetic number, because the mean of its divisors is an integer number (1660565997).

Almost surely, 2^3321131993 is an apocalyptic number.

It is an amenable number.

3321131993 is a deficient number, since it is larger than the sum of its proper divisors (1).

3321131993 is an equidigital number, since it uses as much as digits as its factorization.

3321131993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13122, while the sum is 35.

The square root of 3321131993 is about 57629.2633390364. The cubic root of 3321131993 is about 1491.9767156400.

The spelling of 3321131993 in words is "three billion, three hundred twenty-one million, one hundred thirty-one thousand, nine hundred ninety-three".