321301242 has 20 divisors (see below), whose sum is σ = 719953146. Its totient is φ = 107100360.

The previous prime is 321301181. The next prime is 321301243. The reversal of 321301242 is 242103123.

321301242 is a `hidden beast` number, since 321 + 301 + 2 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 321090561 + 210681 = 17919^2 + 459^2 .

It is a super-2 number, since 2×321301242² = 206468976221485128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (321301243) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 991509 + ... + 991832.

Almost surely, 2^321301242 is an apocalyptic number.

321301242 is an abundant number, since it is smaller than the sum of its proper divisors (398651904).

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

321301242 is a wasteful number, since it uses less digits than its factorization.

321301242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983355 (or 1983346 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 321301242 is about 17924.8777401688. The cubic root of 321301242 is about 684.9162467086.

Adding to 321301242 its reverse (242103123), we get a palindrome (563404365).

The spelling of 321301242 in words is "three hundred twenty-one million, three hundred one thousand, two hundred forty-two".