320103312 has 60 divisors (see below), whose sum is σ = 835352784. Its totient is φ = 105624000.

The previous prime is 320103307. The next prime is 320103313. The reversal of 320103312 is 213301023.

It is a super-2 number, since 2×320103312² = 204932260706738688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320103291 and 320103300.

It is not an unprimeable number, because it can be changed into a prime (320103313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1275187 + ... + 1275437.

Almost surely, 2^320103312 is an apocalyptic number.

It is an amenable number.

320103312 is an abundant number, since it is smaller than the sum of its proper divisors (515249472).

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

320103312 is a wasteful number, since it uses less digits than its factorization.

320103312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 320103312 is about 17891.4312451520. The cubic root of 320103312 is about 684.0639795152.

Adding to 320103312 its reverse (213301023), we get a palindrome (533404335).

The spelling of 320103312 in words is "three hundred twenty million, one hundred three thousand, three hundred twelve".