321234243324340 has 12 divisors (see below), whose sum is σ = 674591910981156. Its totient is φ = 128493697329728.

The previous prime is 321234243324289. The next prime is 321234243324383. The reversal of 321234243324340 is 43423342432123.

It can be written as a sum of positive squares in 2 ways, for example, as 254564960728464 + 66669282595876 = 15955092^2 + 8165126^2 .

It is a super-2 number, since 2×321234243324340² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321234243324293 and 321234243324302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8030856083089 + ... + 8030856083128.

It is an arithmetic number, because the mean of its divisors is an integer number (56215992581763).

Almost surely, 2^{321234243324340} is an apocalyptic number.

It is an amenable number.

321234243324340 is an abundant number, since it is smaller than the sum of its proper divisors (353357667656816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321234243324340 is a wasteful number, since it uses less digits than its factorization.

321234243324340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16061712166226 (or 16061712166224 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 40.

Adding to 321234243324340 its reverse (43423342432123), we get a palindrome (364657585756463).

The spelling of 321234243324340 in words is "three hundred twenty-one trillion, two hundred thirty-four billion, two hundred forty-three million, three hundred twenty-four thousand, three hundred forty".