320030223450 has 144 divisors (see below), whose sum is σ = 923534622144. Its totient is φ = 73127577600.

The previous prime is 320030223407. The next prime is 320030223493. The reversal of 320030223450 is 54322030023.

It is an interprime number because it is at equal distance from previous prime (320030223407) and next prime (320030223493).

It is a self number, because there is not a number n which added to its sum of digits gives 320030223450.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 46573515 + ... + 46580385.

It is an arithmetic number, because the mean of its divisors is an integer number (6413434876).

Almost surely, 2^320030223450 is an apocalyptic number.

320030223450 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 320030223450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (461767311072).

320030223450 is an abundant number, since it is smaller than the sum of its proper divisors (603504398694).

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

320030223450 is a wasteful number, since it uses less digits than its factorization.

320030223450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13237 (or 13225 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

Adding to 320030223450 its reverse (54322030023), we get a palindrome (374352253473).

The spelling of 320030223450 in words is "three hundred twenty billion, thirty million, two hundred twenty-three thousand, four hundred fifty".