321312606 has 32 divisors (see below), whose sum is σ = 662165280. Its totient is φ = 103893504.

The previous prime is 321312601. The next prime is 321312611. The reversal of 321312606 is 606213123.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (321312601) and next prime (321312611).

It is a super-2 number, since 2×321312606² = 206483581549022472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321312601) 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 15 ways as a sum of consecutive naturals, for example, 22626 + ... + 33978.

It is an arithmetic number, because the mean of its divisors is an integer number (20692665).

Almost surely, 2^321312606 is an apocalyptic number.

321312606 is an abundant number, since it is smaller than the sum of its proper divisors (340852674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321312606 is a wasteful number, since it uses less digits than its factorization.

321312606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11500.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 321312606 is about 17925.1947269758. The cubic root of 321312606 is about 684.9243214740.

Adding to 321312606 its reverse (606213123), we get a palindrome (927525729).

The spelling of 321312606 in words is "three hundred twenty-one million, three hundred twelve thousand, six hundred six".