320232321125178 has 128 divisors (see below), whose sum is σ = 804948296011776. Its totient is φ = 82506605376000.

The previous prime is 320232321125177. The next prime is 320232321125231. The reversal of 320232321125178 is 871521123232023.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (320232321125177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 80401051 + ... + 84289937.

It is an arithmetic number, because the mean of its divisors is an integer number (6288658562592).

Almost surely, 2^{320232321125178} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320232321125178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402474148005888).

320232321125178 is an abundant number, since it is smaller than the sum of its proper divisors (484715974886598).

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

320232321125178 is a wasteful number, since it uses less digits than its factorization.

320232321125178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890348.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 320232321125178 in words is "three hundred twenty trillion, two hundred thirty-two billion, three hundred twenty-one million, one hundred twenty-five thousand, one hundred seventy-eight".