321110042 has 48 divisors (see below), whose sum is σ = 567521640. Its totient is φ = 135674880.

The previous prime is 321110033. The next prime is 321110047. The reversal of 321110042 is 240011123.

It can be written as a sum of positive squares in 4 ways, for example, as 305515441 + 15594601 = 17479^2 + 3949^2 .

It is a super-2 number, since 2×321110042² = 206223318146483528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321109999 and 321110026.

It is not an unprimeable number, because it can be changed into a prime (321110047) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 365708 + ... + 366584.

Almost surely, 2^321110042 is an apocalyptic number.

321110042 is a deficient number, since it is larger than the sum of its proper divisors (246411598).

321110042 is a wasteful number, since it uses less digits than its factorization.

321110042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007 (or 996 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 321110042 is about 17919.5435767767. The cubic root of 321110042 is about 684.7803597234.

Adding to 321110042 its reverse (240011123), we get a palindrome (561121165).

The spelling of 321110042 in words is "three hundred twenty-one million, one hundred ten thousand, forty-two".