321230113321 has 4 divisors (see below), whose sum is σ = 345940122052. Its totient is φ = 296520104592.

The previous prime is 321230113279. The next prime is 321230113327. The reversal of 321230113321 is 123311032123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 169180029225 + 152050084096 = 411315^2 + 389936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321230113321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321230113292 and 321230113301.

It is not an unprimeable number, because it can be changed into a prime (321230113327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12355004346 + ... + 12355004371.

It is an arithmetic number, because the mean of its divisors is an integer number (86485030513).

Almost surely, 2^321230113321 is an apocalyptic number.

It is an amenable number.

321230113321 is a deficient number, since it is larger than the sum of its proper divisors (24710008731).

321230113321 is a wasteful number, since it uses less digits than its factorization.

321230113321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24710008730.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 321230113321 its reverse (123311032123), we get a palindrome (444541145444).

The spelling of 321230113321 in words is "three hundred twenty-one billion, two hundred thirty million, one hundred thirteen thousand, three hundred twenty-one".