3313303021 has 6 divisors (see below), whose sum is σ = 3854250510. Its totient is φ = 2839973976.

The previous prime is 3313303013. The next prime is 3313303027. The reversal of 3313303021 is 1203033133.

It can be written as a sum of positive squares in only one way, i.e., 1720175625 + 1593127396 = 41475^2 + 39914^2 .

It is not a de Polignac number, because 3313303021 - 2³ = 3313303013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3313303021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3313303027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33809166 + ... + 33809263.

It is an arithmetic number, because the mean of its divisors is an integer number (642375085).

Almost surely, 2^3313303021 is an apocalyptic number.

It is an amenable number.

3313303021 is a deficient number, since it is larger than the sum of its proper divisors (540947489).

3313303021 is an equidigital number, since it uses as much as digits as its factorization.

3313303021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67618443 (or 67618436 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 3313303021 is about 57561.2979440179. The cubic root of 3313303021 is about 1490.8034375393.

Adding to 3313303021 its reverse (1203033133), we get a palindrome (4516336154).

The spelling of 3313303021 in words is "three billion, three hundred thirteen million, three hundred three thousand, twenty-one".