321660321734373 has 4 divisors (see below), whose sum is σ = 428880428979168. Its totient is φ = 214440214489580.

The previous prime is 321660321734371. The next prime is 321660321734393. The reversal of 321660321734373 is 373437123066123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 321660321734373 - 2¹ = 321660321734371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321660321734371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53610053622393 + ... + 53610053622398.

It is an arithmetic number, because the mean of its divisors is an integer number (107220107244792).

Almost surely, 2^{321660321734373} is an apocalyptic number.

It is an amenable number.

321660321734373 is a deficient number, since it is larger than the sum of its proper divisors (107220107244795).

321660321734373 is a wasteful number, since it uses less digits than its factorization.

321660321734373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107220107244794.

The product of its (nonzero) digits is 6858432, while the sum is 51.

The spelling of 321660321734373 in words is "three hundred twenty-one trillion, six hundred sixty billion, three hundred twenty-one million, seven hundred thirty-four thousand, three hundred seventy-three".