321116052 has 12 divisors (see below), whose sum is σ = 749270816. Its totient is φ = 107038680.

The previous prime is 321116039. The next prime is 321116053. The reversal of 321116052 is 250611123.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321116053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13379824 + ... + 13379847.

Almost surely, 2^321116052 is an apocalyptic number.

It is an amenable number.

321116052 is an abundant number, since it is smaller than the sum of its proper divisors (428154764).

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

321116052 is a wasteful number, since it uses less digits than its factorization.

321116052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26759678 (or 26759676 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 321116052 is about 17919.7112699954. The cubic root of 321116052 is about 684.7846318874.

Adding to 321116052 its reverse (250611123), we get a palindrome (571727175).

The spelling of 321116052 in words is "three hundred twenty-one million, one hundred sixteen thousand, fifty-two".