321203404240342 has 16 divisors (see below), whose sum is σ = 541426474038240. Its totient is φ = 141802171771392.

The previous prime is 321203404240331. The next prime is 321203404240387. The reversal of 321203404240342 is 243042404302123.

It is a super-3 number, since 3×321203404240342³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 321203404240298 and 321203404240307.

It is a congruent number.

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, 268564718667 + ... + 268564719862.

It is an arithmetic number, because the mean of its divisors is an integer number (33839154627390).

Almost surely, 2^{321203404240342} is an apocalyptic number.

321203404240342 is a deficient number, since it is larger than the sum of its proper divisors (220223069797898).

321203404240342 is a wasteful number, since it uses less digits than its factorization.

321203404240342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537129438567.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 321203404240342 its reverse (243042404302123), we get a palindrome (564245808542465).

The spelling of 321203404240342 in words is "three hundred twenty-one trillion, two hundred three billion, four hundred four million, two hundred forty thousand, three hundred forty-two".