320403112 has 16 divisors (see below), whose sum is σ = 609723360. Its totient is φ = 157810224.

The previous prime is 320403103. The next prime is 320403119. The reversal of 320403112 is 211304023.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (320403119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298348 + ... + 299419.

It is an arithmetic number, because the mean of its divisors is an integer number (38107710).

Almost surely, 2^320403112 is an apocalyptic number.

It is an amenable number.

320403112 is a deficient number, since it is larger than the sum of its proper divisors (289320248).

320403112 is a wasteful number, since it uses less digits than its factorization.

320403112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597840 (or 597836 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 320403112 is about 17899.8075967313. The cubic root of 320403112 is about 684.2774714117.

Adding to 320403112 its reverse (211304023), we get a palindrome (531707135).

The spelling of 320403112 in words is "three hundred twenty million, four hundred three thousand, one hundred twelve".