320552103021 has 16 divisors (see below), whose sum is σ = 428309968320. Its totient is φ = 213248246400.

The previous prime is 320552103019. The next prime is 320552103031. The reversal of 320552103021 is 120301255023.

It is a happy number.

It is not a de Polignac number, because 320552103021 - 2¹ = 320552103019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320552102982 and 320552103000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320552103031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3016041 + ... + 3120513.

It is an arithmetic number, because the mean of its divisors is an integer number (26769373020).

Almost surely, 2^320552103021 is an apocalyptic number.

It is an amenable number.

320552103021 is a deficient number, since it is larger than the sum of its proper divisors (107757865299).

320552103021 is a wasteful number, since it uses less digits than its factorization.

320552103021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106636.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 320552103021 its reverse (120301255023), we get a palindrome (440853358044).

The spelling of 320552103021 in words is "three hundred twenty billion, five hundred fifty-two million, one hundred three thousand, twenty-one".