3220981313 has 32 divisors (see below), whose sum is σ = 3944567808. Its totient is φ = 2594764800.

The previous prime is 3220981307. The next prime is 3220981331. The reversal of 3220981313 is 3131890223.

It is a cyclic number.

It is not a de Polignac number, because 3220981313 - 2²² = 3216787009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3220981313.

It is not an unprimeable number, because it can be changed into a prime (3220981343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206981 + ... + 221997.

It is an arithmetic number, because the mean of its divisors is an integer number (123267744).

Almost surely, 2^3220981313 is an apocalyptic number.

It is an amenable number.

3220981313 is a deficient number, since it is larger than the sum of its proper divisors (723586495).

3220981313 is a wasteful number, since it uses less digits than its factorization.

3220981313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15113.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 3220981313 is about 56753.6898624222. The cubic root of 3220981313 is about 1476.8262451443.

The spelling of 3220981313 in words is "three billion, two hundred twenty million, nine hundred eighty-one thousand, three hundred thirteen".