321044120012 has 432 divisors, whose sum is σ = 801109790208. Its totient is φ = 109306920960.

The previous prime is 321044119973. The next prime is 321044120027. The reversal of 321044120012 is 210021440123.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3116933153 + ... + 3116933255.

Almost surely, 2^321044120012 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 321044120012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400554895104).

321044120012 is an abundant number, since it is smaller than the sum of its proper divisors (480065670196).

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

321044120012 is a wasteful number, since it uses less digits than its factorization.

321044120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 321044120012 its reverse (210021440123), we get a palindrome (531065560135).

The spelling of 321044120012 in words is "three hundred twenty-one billion, forty-four million, one hundred twenty thousand, twelve".