320423321130 has 256 divisors, whose sum is σ = 865487462400. Its totient is φ = 75265920000.

The previous prime is 320423321123. The next prime is 320423321243. The reversal of 320423321130 is 31123324023.

It is a super-2 number, since 2×320423321130² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320423321130.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 729893451 + ... + 729893889.

It is an arithmetic number, because the mean of its divisors is an integer number (3380810400).

Almost surely, 2^320423321130 is an apocalyptic number.

320423321130 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 320423321130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432743731200).

320423321130 is an abundant number, since it is smaller than the sum of its proper divisors (545064141270).

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

320423321130 is a wasteful number, since it uses less digits than its factorization.

320423321130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 320423321130 its reverse (31123324023), we get a palindrome (351546645153).

The spelling of 320423321130 in words is "three hundred twenty billion, four hundred twenty-three million, three hundred twenty-one thousand, one hundred thirty".