3213514021 has 4 divisors (see below), whose sum is σ = 3213838944. Its totient is φ = 3213189100.

The previous prime is 3213514013. The next prime is 3213514039. The reversal of 3213514021 is 1204153123.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 3213514021 - 2³ = 3213514013 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3213513983 and 3213514001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213544021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147145 + ... + 167566.

It is an arithmetic number, because the mean of its divisors is an integer number (803459736).

Almost surely, 2^3213514021 is an apocalyptic number.

It is an amenable number.

3213514021 is a deficient number, since it is larger than the sum of its proper divisors (324923).

3213514021 is a wasteful number, since it uses less digits than its factorization.

3213514021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324922.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 3213514021 is about 56687.8648477785. The cubic root of 3213514021 is about 1475.6841060653.

Adding to 3213514021 its reverse (1204153123), we get a palindrome (4417667144).

The spelling of 3213514021 in words is "three billion, two hundred thirteen million, five hundred fourteen thousand, twenty-one".