321043242 has 16 divisors (see below), whose sum is σ = 691477920. Its totient is φ = 98782512.

The previous prime is 321043237. The next prime is 321043273. The reversal of 321043242 is 242340123.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2057892 + ... + 2058047.

It is an arithmetic number, because the mean of its divisors is an integer number (43217370).

Almost surely, 2^321043242 is an apocalyptic number.

321043242 is an abundant number, since it is smaller than the sum of its proper divisors (370434678).

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

321043242 is a wasteful number, since it uses less digits than its factorization.

321043242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4115957.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 321043242 is about 17917.6795930723. The cubic root of 321043242 is about 684.7328718486.

Adding to 321043242 its reverse (242340123), we get a palindrome (563383365).

The spelling of 321043242 in words is "three hundred twenty-one million, forty-three thousand, two hundred forty-two".