321031442 has 8 divisors (see below), whose sum is σ = 482889600. Its totient is φ = 160068244.

The previous prime is 321031439. The next prime is 321031457. The reversal of 321031442 is 244130123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×321031442² = 206122373505198728, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222842 + ... + 224277.

It is an arithmetic number, because the mean of its divisors is an integer number (60361200).

Almost surely, 2^321031442 is an apocalyptic number.

321031442 is a deficient number, since it is larger than the sum of its proper divisors (161858158).

321031442 is a wasteful number, since it uses less digits than its factorization.

321031442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447480.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 321031442 is about 17917.3503063372. The cubic root of 321031442 is about 684.7244825874.

Adding to 321031442 its reverse (244130123), we get a palindrome (565161565).

The spelling of 321031442 in words is "three hundred twenty-one million, thirty-one thousand, four hundred forty-two".