320331112 has 8 divisors (see below), whose sum is σ = 600620850. Its totient is φ = 160165552.

The previous prime is 320331103. The next prime is 320331139. The reversal of 320331112 is 211133023.

It can be written as a sum of positive squares in only one way, i.e., 178863876 + 141467236 = 13374^2 + 11894^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×320331112² = 205224042630313088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20020687 + ... + 20020702.

Almost surely, 2^320331112 is an apocalyptic number.

It is an amenable number.

320331112 is a deficient number, since it is larger than the sum of its proper divisors (280289738).

320331112 is a wasteful number, since it uses less digits than its factorization.

320331112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40041395 (or 40041391 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 320331112 is about 17897.7962889290. The cubic root of 320331112 is about 684.2262113302.

Adding to 320331112 its reverse (211133023), we get a palindrome (531464135).

The spelling of 320331112 in words is "three hundred twenty million, three hundred thirty-one thousand, one hundred twelve".