321240044433242 has 16 divisors (see below), whose sum is σ = 525665835300672. Its totient is φ = 146018116446720.

The previous prime is 321240044433227. The next prime is 321240044433263. The reversal of 321240044433242 is 242334440042123.

It is a super-2 number, since 2×321240044433242² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321240044433196 and 321240044433205.

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, 48688538 + ... + 54891290.

It is an arithmetic number, because the mean of its divisors is an integer number (32854114706292).

Almost surely, 2^{321240044433242} is an apocalyptic number.

321240044433242 is a deficient number, since it is larger than the sum of its proper divisors (204425790867430).

321240044433242 is a wasteful number, since it uses less digits than its factorization.

321240044433242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8556853.

The product of its (nonzero) digits is 442368, while the sum is 38.

Adding to 321240044433242 its reverse (242334440042123), we get a palindrome (563574484475365).

The spelling of 321240044433242 in words is "three hundred twenty-one trillion, two hundred forty billion, forty-four million, four hundred thirty-three thousand, two hundred forty-two".