320012342144 has 64 divisors (see below), whose sum is σ = 700558297200. Its totient is φ = 144398315520.

The previous prime is 320012342101. The next prime is 320012342147. The reversal of 320012342144 is 441243210023.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320012342147) 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, 636599 + ... + 1022390.

Almost surely, 2^320012342144 is an apocalyptic number.

It is an amenable number.

320012342144 is an abundant number, since it is smaller than the sum of its proper divisors (380545955056).

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

320012342144 is a wasteful number, since it uses less digits than its factorization.

320012342144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659151 (or 1659139 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 320012342144 its reverse (441243210023), we get a palindrome (761255552167).

The spelling of 320012342144 in words is "three hundred twenty billion, twelve million, three hundred forty-two thousand, one hundred forty-four".