3313838981 has 4 divisors (see below), whose sum is σ = 3394664364. Its totient is φ = 3233013600.

The previous prime is 3313838977. The next prime is 3313838999. The reversal of 3313838981 is 1898383133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1898383133 = 26879 ⋅70627.

It can be written as a sum of positive squares in 2 ways, for example, as 1000709956 + 2313129025 = 31634^2 + 48095^2 .

It is a cyclic number.

It is not a de Polignac number, because 3313838981 - 2² = 3313838977 is a prime.

It is a super-2 number, since 2×3313838981² = 21963057583990236722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3313838911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40412630 + ... + 40412711.

It is an arithmetic number, because the mean of its divisors is an integer number (848666091).

Almost surely, 2^3313838981 is an apocalyptic number.

It is an amenable number.

3313838981 is a deficient number, since it is larger than the sum of its proper divisors (80825383).

3313838981 is an equidigital number, since it uses as much as digits as its factorization.

3313838981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80825382.

The product of its digits is 373248, while the sum is 47.

The square root of 3313838981 is about 57565.9533144375. The cubic root of 3313838981 is about 1490.8838173423.

The spelling of 3313838981 in words is "three billion, three hundred thirteen million, eight hundred thirty-eight thousand, nine hundred eighty-one".