320411021321 has 8 divisors (see below), whose sum is σ = 329363849664. Its totient is φ = 311473617840.

The previous prime is 320411021317. The next prime is 320411021383. The reversal of 320411021321 is 123120114023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320411021321 - 2² = 320411021317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320411021293 and 320411021302.

It is not an unprimeable number, because it can be changed into a prime (320411021521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3814085 + ... + 3897186.

It is an arithmetic number, because the mean of its divisors is an integer number (41170481208).

Almost surely, 2^320411021321 is an apocalyptic number.

It is an amenable number.

320411021321 is a deficient number, since it is larger than the sum of its proper divisors (8952828343).

320411021321 is a wasteful number, since it uses less digits than its factorization.

320411021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7712431.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 320411021321 its reverse (123120114023), we get a palindrome (443531135344).

The spelling of 320411021321 in words is "three hundred twenty billion, four hundred eleven million, twenty-one thousand, three hundred twenty-one".