320012001223 has 4 divisors (see below), whose sum is σ = 320013135288. Its totient is φ = 320010867160.

The previous prime is 320012001191. The next prime is 320012001229. The reversal of 320012001223 is 322100210023.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 320012001223 - 2⁵ = 320012001191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320012001197 and 320012001206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320012001229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225165 + ... + 831097.

It is an arithmetic number, because the mean of its divisors is an integer number (80003283822).

Almost surely, 2^320012001223 is an apocalyptic number.

320012001223 is a deficient number, since it is larger than the sum of its proper divisors (1134065).

320012001223 is an equidigital number, since it uses as much as digits as its factorization.

320012001223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134064.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 320012001223 its reverse (322100210023), we get a palindrome (642112211246).

The spelling of 320012001223 in words is "three hundred twenty billion, twelve million, one thousand, two hundred twenty-three".