321041044992 has 320 divisors, whose sum is σ = 906923381760. Its totient is φ = 100717461504.

The previous prime is 321041044943. The next prime is 321041044999. The reversal of 321041044992 is 299440140123.

It is a self number, because there is not a number n which added to its sum of digits gives 321041044992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321041044999) 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 31 ways as a sum of consecutive naturals, for example, 1012747618 + ... + 1012747934.

It is an arithmetic number, because the mean of its divisors is an integer number (2834135568).

Almost surely, 2^321041044992 is an apocalyptic number.

321041044992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321041044992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453461690880).

321041044992 is an abundant number, since it is smaller than the sum of its proper divisors (585882336768).

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

321041044992 is a wasteful number, since it uses less digits than its factorization.

321041044992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733 (or 717 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 321041044992 in words is "three hundred twenty-one billion, forty-one million, forty-four thousand, nine hundred ninety-two".