320321834352 has 120 divisors (see below), whose sum is σ = 966089770464. Its totient is φ = 98491617792.

The previous prime is 320321834333. The next prime is 320321834353. The reversal of 320321834352 is 253438123023.

320321834352 is a `hidden beast` number, since 3 + 2 + 0 + 3 + 218 + 3 + 435 + 2 = 666.

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 (320321834353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2649658 + ... + 2767910.

Almost surely, 2^320321834352 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 320321834352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483044885232).

320321834352 is an abundant number, since it is smaller than the sum of its proper divisors (645767936112).

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

320321834352 is a wasteful number, since it uses less digits than its factorization.

320321834352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119727 (or 119718 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 320321834352 its reverse (253438123023), we get a palindrome (573759957375).

The spelling of 320321834352 in words is "three hundred twenty billion, three hundred twenty-one million, eight hundred thirty-four thousand, three hundred fifty-two".