320111021023 has 16 divisors (see below), whose sum is σ = 322636608000. Its totient is φ = 317597496832.

The previous prime is 320111020961. The next prime is 320111021047. The reversal of 320111021023 is 320120111023.

It is a cyclic number.

It is not a de Polignac number, because 320111021023 - 2¹⁷ = 320110889951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320111020988 and 320111021006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320111021053) 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, 102042111 + ... + 102045247.

It is an arithmetic number, because the mean of its divisors is an integer number (20164788000).

Almost surely, 2^320111021023 is an apocalyptic number.

320111021023 is a deficient number, since it is larger than the sum of its proper divisors (2525586977).

320111021023 is a wasteful number, since it uses less digits than its factorization.

320111021023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4814.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 320111021023 its reverse (320120111023), we get a palindrome (640231132046).

The spelling of 320111021023 in words is "three hundred twenty billion, one hundred eleven million, twenty-one thousand, twenty-three".