3313313021 has 4 divisors (see below), whose sum is σ = 3313429344. Its totient is φ = 3313196700.

The previous prime is 3313312997. The next prime is 3313313023. The reversal of 3313313021 is 1203133133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3313313021 - 2¹⁰ = 3313311997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3313312984 and 3313313002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3313313023) 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 in 3 ways as a sum of consecutive naturals, for example, 16586 + ... + 83076.

It is an arithmetic number, because the mean of its divisors is an integer number (828357336).

Almost surely, 2^3313313021 is an apocalyptic number.

It is an amenable number.

3313313021 is a deficient number, since it is larger than the sum of its proper divisors (116323).

3313313021 is an equidigital number, since it uses as much as digits as its factorization.

3313313021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116322.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 3313313021 is about 57561.3848078727. The cubic root of 3313313021 is about 1490.8049373538.

Adding to 3313313021 its reverse (1203133133), we get a palindrome (4516446154).

The spelling of 3313313021 in words is "three billion, three hundred thirteen million, three hundred thirteen thousand, twenty-one".