321312023310 has 128 divisors (see below), whose sum is σ = 813887585280. Its totient is φ = 81024768000.

The previous prime is 321312023251. The next prime is 321312023339. The reversal of 321312023310 is 13320213123.

It is a super-2 number, since 2×321312023310² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23107360 + ... + 23121260.

It is an arithmetic number, because the mean of its divisors is an integer number (6358496760).

Almost surely, 2^321312023310 is an apocalyptic number.

321312023310 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 321312023310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406943792640).

321312023310 is an abundant number, since it is smaller than the sum of its proper divisors (492575561970).

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

321312023310 is a wasteful number, since it uses less digits than its factorization.

321312023310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14314.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 321312023310 its reverse (13320213123), we get a palindrome (334632236433).

The spelling of 321312023310 in words is "three hundred twenty-one billion, three hundred twelve million, twenty-three thousand, three hundred ten".