320642703902 has 8 divisors (see below), whose sum is σ = 480994931712. Its totient is φ = 160311060000.

The previous prime is 320642703889. The next prime is 320642703949. The reversal of 320642703902 is 209307246023.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 5106974 + ... + 5169377.

It is an arithmetic number, because the mean of its divisors is an integer number (60124366464).

Almost surely, 2^320642703902 is an apocalyptic number.

320642703902 is a deficient number, since it is larger than the sum of its proper divisors (160352227810).

320642703902 is a wasteful number, since it uses less digits than its factorization.

320642703902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10291954.

The product of its (nonzero) digits is 108864, while the sum is 38.

Adding to 320642703902 its reverse (209307246023), we get a palindrome (529949949925).

The spelling of 320642703902 in words is "three hundred twenty billion, six hundred forty-two million, seven hundred three thousand, nine hundred two".