3213020005 has 8 divisors (see below), whose sum is σ = 4152210552. Its totient is φ = 2372691648.

The previous prime is 3213020003. The next prime is 3213020033. The reversal of 3213020005 is 5000203123.

It can be written as a sum of positive squares in 4 ways, for example, as 100942209 + 3112077796 = 10047^2 + 55786^2 .

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 3213020005 - 2¹ = 3213020003 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 (3213020003) 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, 24715474 + ... + 24715603.

It is an arithmetic number, because the mean of its divisors is an integer number (519026319).

Almost surely, 2^3213020005 is an apocalyptic number.

It is an amenable number.

3213020005 is a deficient number, since it is larger than the sum of its proper divisors (939190547).

3213020005 is a wasteful number, since it uses less digits than its factorization.

3213020005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49431095.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 3213020005 is about 56683.5073456116. The cubic root of 3213020005 is about 1475.6084828363.

Adding to 3213020005 its reverse (5000203123), we get a palindrome (8213223128).

The spelling of 3213020005 in words is "three billion, two hundred thirteen million, twenty thousand, five".