3213320313 has 16 divisors (see below), whose sum is σ = 4925813760. Its totient is φ = 1825185936.

The previous prime is 3213320309. The next prime is 3213320329. The reversal of 3213320313 is 3130233123.

It is not a de Polignac number, because 3213320313 - 2² = 3213320309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 3213320313.

It is not an unprimeable number, because it can be changed into a prime (3213320303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454623 + ... + 461636.

It is an arithmetic number, because the mean of its divisors is an integer number (307863360).

Almost surely, 2^3213320313 is an apocalyptic number.

It is an amenable number.

3213320313 is a deficient number, since it is larger than the sum of its proper divisors (1712493447).

3213320313 is a wasteful number, since it uses less digits than its factorization.

3213320313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916436.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 3213320313 is about 56686.1562729385. The cubic root of 3213320313 is about 1475.6544544587.

Adding to 3213320313 its reverse (3130233123), we get a palindrome (6343553436).

The spelling of 3213320313 in words is "three billion, two hundred thirteen million, three hundred twenty thousand, three hundred thirteen".