321145044242 has 16 divisors (see below), whose sum is σ = 525518884800. Its totient is φ = 145972572240.

The previous prime is 321145044229. The next prime is 321145044251. The reversal of 321145044242 is 242440541123.

It is a super-2 number, since 2×321145044242² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321145044199 and 321145044208.

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, 2191259 + ... + 2333217.

It is an arithmetic number, because the mean of its divisors is an integer number (32844930300).

Almost surely, 2^321145044242 is an apocalyptic number.

321145044242 is a deficient number, since it is larger than the sum of its proper divisors (204373840558).

321145044242 is a wasteful number, since it uses less digits than its factorization.

321145044242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244801.

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 321145044242 its reverse (242440541123), we get a palindrome (563585585365).

The spelling of 321145044242 in words is "three hundred twenty-one billion, one hundred forty-five million, forty-four thousand, two hundred forty-two".