321362130512 has 80 divisors (see below), whose sum is σ = 689007150720. Its totient is φ = 144427278336.

The previous prime is 321362130511. The next prime is 321362130527. The reversal of 321362130512 is 215031263123.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321362130511) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3982664 + ... + 4062552.

It is an arithmetic number, because the mean of its divisors is an integer number (8612589384).

Almost surely, 2^321362130512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321362130512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344503575360).

321362130512 is an abundant number, since it is smaller than the sum of its proper divisors (367645020208).

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

321362130512 is a wasteful number, since it uses less digits than its factorization.

321362130512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80580 (or 80574 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 321362130512 its reverse (215031263123), we get a palindrome (536393393635).

The spelling of 321362130512 in words is "three hundred twenty-one billion, three hundred sixty-two million, one hundred thirty thousand, five hundred twelve".