321320230 has 64 divisors (see below), whose sum is σ = 763540992. Its totient is φ = 94256640.

The previous prime is 321320221. The next prime is 321320269. The reversal of 321320230 is 32023123.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 817 + ... + 25363.

It is an arithmetic number, because the mean of its divisors is an integer number (11930328).

Almost surely, 2^321320230 is an apocalyptic number.

321320230 is an abundant number, since it is smaller than the sum of its proper divisors (442220762).

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

321320230 is a wasteful number, since it uses less digits than its factorization.

321320230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24589.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 321320230 is about 17925.4073872813. The cubic root of 321320230 is about 684.9297386510.

Adding to 321320230 its reverse (32023123), we get a palindrome (353343353).

The spelling of 321320230 in words is "three hundred twenty-one million, three hundred twenty thousand, two hundred thirty".