3213013021 has 8 divisors (see below), whose sum is σ = 3258113144. Its totient is φ = 3167942400.

The previous prime is 3213012997. The next prime is 3213013043. The reversal of 3213013021 is 1203103123.

3213013021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 262893796 + 2950119225 = 16214^2 + 54315^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3213013021 - 2⁵ = 3213012989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3213012986 and 3213013004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213013061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301435 + ... + 311911.

It is an arithmetic number, because the mean of its divisors is an integer number (407264143).

Almost surely, 2^3213013021 is an apocalyptic number.

It is an amenable number.

3213013021 is a deficient number, since it is larger than the sum of its proper divisors (45100123).

3213013021 is a wasteful number, since it uses less digits than its factorization.

3213013021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14751.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 3213013021 is about 56683.4457403570. The cubic root of 3213013021 is about 1475.6074136805.

Adding to 3213013021 its reverse (1203103123), we get a palindrome (4416116144).

The spelling of 3213013021 in words is "three billion, two hundred thirteen million, thirteen thousand, twenty-one".