3313420421 has 4 divisors (see below), whose sum is σ = 3330240012. Its totient is φ = 3296600832.

The previous prime is 3313420417. The next prime is 3313420463. The reversal of 3313420421 is 1240243133.

3313420421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1240243133 = 31 ⋅40007843.

It can be written as a sum of positive squares in 2 ways, for example, as 3146649025 + 166771396 = 56095^2 + 12914^2 .

It is a cyclic number.

It is not a de Polignac number, because 3313420421 - 2² = 3313420417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3313428421) 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, 8409500 + ... + 8409893.

It is an arithmetic number, because the mean of its divisors is an integer number (832560003).

Almost surely, 2^3313420421 is an apocalyptic number.

It is an amenable number.

3313420421 is a deficient number, since it is larger than the sum of its proper divisors (16819591).

3313420421 is a wasteful number, since it uses less digits than its factorization.

3313420421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16819590.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 3313420421 is about 57562.3177174095. The cubic root of 3313420421 is about 1490.8210451709.

Adding to 3313420421 its reverse (1240243133), we get a palindrome (4553663554).

The spelling of 3313420421 in words is "three billion, three hundred thirteen million, four hundred twenty thousand, four hundred twenty-one".