320013243450 has 192 divisors, whose sum is σ = 899442432000. Its totient is φ = 83646613440.

The previous prime is 320013243437. The next prime is 320013243481. The reversal of 320013243450 is 54342310023.

320013243450 is a `hidden beast` number, since 3 + 200 + 1 + 3 + 2 + 4 + 3 + 450 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 14813557 + ... + 14835143.

It is an arithmetic number, because the mean of its divisors is an integer number (4684596000).

Almost surely, 2^320013243450 is an apocalyptic number.

320013243450 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 320013243450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449721216000).

320013243450 is an abundant number, since it is smaller than the sum of its proper divisors (579429188550).

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

320013243450 is a wasteful number, since it uses less digits than its factorization.

320013243450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21826 (or 21815 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 320013243450 its reverse (54342310023), we get a palindrome (374355553473).

The spelling of 320013243450 in words is "three hundred twenty billion, thirteen million, two hundred forty-three thousand, four hundred fifty".