320242143031302 has 16 divisors (see below), whose sum is σ = 641167833871152. Its totient is φ = 106633456375680.

The previous prime is 320242143031301. The next prime is 320242143031331. The reversal of 320242143031302 is 203130341242023.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 320242143031302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320242143031301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28481152599 + ... + 28481163842.

It is an arithmetic number, because the mean of its divisors is an integer number (40072989616947).

Almost surely, 2^{320242143031302} is an apocalyptic number.

320242143031302 is an abundant number, since it is smaller than the sum of its proper divisors (320925690839850).

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

320242143031302 is a wasteful number, since it uses less digits than its factorization.

320242143031302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56962317383.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 320242143031302 its reverse (203130341242023), we get a palindrome (523372484273325).

The spelling of 320242143031302 in words is "three hundred twenty trillion, two hundred forty-two billion, one hundred forty-three million, thirty-one thousand, three hundred two".