320021101021 has 8 divisors (see below), whose sum is σ = 325447809984. Its totient is φ = 314619930240.

The previous prime is 320021100947. The next prime is 320021101079. The reversal of 320021101021 is 120101120023.

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 320021101021 - 2³⁷ = 182582147549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320021100992 and 320021101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320021108021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6359271 + ... + 6409396.

It is an arithmetic number, because the mean of its divisors is an integer number (40680976248).

Almost surely, 2^320021101021 is an apocalyptic number.

It is an amenable number.

320021101021 is a deficient number, since it is larger than the sum of its proper divisors (5426708963).

320021101021 is a wasteful number, since it uses less digits than its factorization.

320021101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12769091.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 320021101021 its reverse (120101120023), we get a palindrome (440122221044).

The spelling of 320021101021 in words is "three hundred twenty billion, twenty-one million, one hundred one thousand, twenty-one".