320232100 has 18 divisors (see below), whose sum is σ = 694903874. Its totient is φ = 128092800.

The previous prime is 320232091. The next prime is 320232119. The reversal of 320232100 is 1232023.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 36864 + 320195236 = 192^2 + 17894^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1601061 + ... + 1601260.

Almost surely, 2^320232100 is an apocalyptic number.

It is an amenable number.

320232100 is an abundant number, since it is smaller than the sum of its proper divisors (374671774).

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

320232100 is a wasteful number, since it uses less digits than its factorization.

320232100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202335 (or 3202328 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 320232100 is about 17895.0300362978. The cubic root of 320232100 is about 684.1557076292.

Adding to 320232100 its reverse (1232023), we get a palindrome (321464123).

The spelling of 320232100 in words is "three hundred twenty million, two hundred thirty-two thousand, one hundred".