320423330430 has 192 divisors, whose sum is σ = 958449742848. Its totient is φ = 72753500160.

The previous prime is 320423330419. The next prime is 320423330453. The reversal of 320423330430 is 34033324023.

320423330430 is a `hidden beast` number, since 3 + 204 + 23 + 3 + 3 + 0 + 430 = 666.

It is a super-2 number, since 2×320423330430² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320423330394 and 320423330403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 107848845 + ... + 107851815.

It is an arithmetic number, because the mean of its divisors is an integer number (4991925744).

Almost surely, 2^320423330430 is an apocalyptic number.

320423330430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 320423330430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (479224871424).

320423330430 is an abundant number, since it is smaller than the sum of its proper divisors (638026412418).

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

320423330430 is a wasteful number, since it uses less digits than its factorization.

320423330430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071 (or 4068 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 27.

Adding to 320423330430 its reverse (34033324023), we get a palindrome (354456654453).

The spelling of 320423330430 in words is "three hundred twenty billion, four hundred twenty-three million, three hundred thirty thousand, four hundred thirty".