321430034311321 has 4 divisors (see below), whose sum is σ = 346155421566052. Its totient is φ = 296704647056592.

The previous prime is 321430034311291. The next prime is 321430034311333. The reversal of 321430034311321 is 123113430034123.

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 51489077496921 + 269940956814400 = 7175589^2 + 16429880^2 .

It is a cyclic number.

It is not a de Polignac number, because 321430034311321 - 2⁵ = 321430034311289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321430034311621) 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, 12362693627346 + ... + 12362693627371.

It is an arithmetic number, because the mean of its divisors is an integer number (86538855391513).

Almost surely, 2^{321430034311321} is an apocalyptic number.

It is an amenable number.

321430034311321 is a deficient number, since it is larger than the sum of its proper divisors (24725387254731).

321430034311321 is a wasteful number, since it uses less digits than its factorization.

321430034311321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24725387254730.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 321430034311321 its reverse (123113430034123), we get a palindrome (444543464345444).

The spelling of 321430034311321 in words is "three hundred twenty-one trillion, four hundred thirty billion, thirty-four million, three hundred eleven thousand, three hundred twenty-one".