321012331120 has 80 divisors (see below), whose sum is σ = 803864799360. Its totient is φ = 118512986112.

The previous prime is 321012331099. The next prime is 321012331121. The reversal of 321012331120 is 21133210123.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321012331121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12110041 + ... + 12136519.

It is an arithmetic number, because the mean of its divisors is an integer number (10048309992).

Almost surely, 2^321012331120 is an apocalyptic number.

It is an amenable number.

321012331120 is an abundant number, since it is smaller than the sum of its proper divisors (482852468240).

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

321012331120 is a wasteful number, since it uses less digits than its factorization.

321012331120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38162 (or 38156 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 321012331120 its reverse (21133210123), we get a palindrome (342145541243).

The spelling of 321012331120 in words is "three hundred twenty-one billion, twelve million, three hundred thirty-one thousand, one hundred twenty".