320135430044 has 12 divisors (see below), whose sum is σ = 569421216168. Its totient is φ = 157443654000.

The previous prime is 320135430037. The next prime is 320135430053. The reversal of 320135430044 is 440034531023.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 320135429989 and 320135430016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656014982 + ... + 656015469.

It is an arithmetic number, because the mean of its divisors is an integer number (47451768014).

Almost surely, 2^320135430044 is an apocalyptic number.

It is an amenable number.

320135430044 is a deficient number, since it is larger than the sum of its proper divisors (249285786124).

320135430044 is a wasteful number, since it uses less digits than its factorization.

320135430044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312030516 (or 1312030514 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 320135430044 its reverse (440034531023), we get a palindrome (760169961067).

The spelling of 320135430044 in words is "three hundred twenty billion, one hundred thirty-five million, four hundred thirty thousand, forty-four".