321320342 has 32 divisors (see below), whose sum is σ = 570547200. Its totient is φ = 135633960.

The previous prime is 321320317. The next prime is 321320347. The reversal of 321320342 is 243023123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321320347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42467 + ... + 49457.

It is an arithmetic number, because the mean of its divisors is an integer number (17829600).

Almost surely, 2^321320342 is an apocalyptic number.

321320342 is a deficient number, since it is larger than the sum of its proper divisors (249226858).

321320342 is an equidigital number, since it uses as much as digits as its factorization.

321320342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7081 (or 7067 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 321320342 is about 17925.4105113384. The cubic root of 321320342 is about 684.9298182311.

Adding to 321320342 its reverse (243023123), we get a palindrome (564343465).

The spelling of 321320342 in words is "three hundred twenty-one million, three hundred twenty thousand, three hundred forty-two".