320321134244412 has 1296 divisors, whose sum is σ = 1070560907619840. Its totient is φ = 83200221232128.

The previous prime is 320321134244359. The next prime is 320321134244417. The reversal of 320321134244412 is 214442431123023.

320321134244412 is a `hidden beast` number, since 3 + 2 + 0 + 3 + 211 + 3 + 4 + 24 + 4 + 412 = 666.

It is a super-2 number, since 2×320321134244412² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320321134244417) by changing a digit.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 141297367303 + ... + 141297369569.

It is an arithmetic number, because the mean of its divisors is an integer number (826050083040).

Almost surely, 2^{320321134244412} 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 320321134244412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535280453809920).

320321134244412 is an abundant number, since it is smaller than the sum of its proper divisors (750239773375428).

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

320321134244412 is a wasteful number, since it uses less digits than its factorization.

320321134244412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490 (or 2422 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 320321134244412 its reverse (214442431123023), we get a palindrome (534763565367435).

The spelling of 320321134244412 in words is "three hundred twenty trillion, three hundred twenty-one billion, one hundred thirty-four million, two hundred forty-four thousand, four hundred twelve".