320332123 has 4 divisors (see below), whose sum is σ = 324387040. Its totient is φ = 316277208.

The previous prime is 320332099. The next prime is 320332151. The reversal of 320332123 is 321233023.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320332123 - 2¹³ = 320323931 is a prime.

It is a super-2 number, since 2×320332123² = 205225338051374258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320332123.

It is not an unprimeable number, because it can be changed into a prime (320332223) 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, 2027340 + ... + 2027497.

It is an arithmetic number, because the mean of its divisors is an integer number (81096760).

Almost surely, 2^320332123 is an apocalyptic number.

320332123 is a deficient number, since it is larger than the sum of its proper divisors (4054917).

320332123 is an equidigital number, since it uses as much as digits as its factorization.

320332123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054916.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 320332123 is about 17897.8245326073. The cubic root of 320332123 is about 684.2269311604.

Adding to 320332123 its reverse (321233023), we get a palindrome (641565146).

The spelling of 320332123 in words is "three hundred twenty million, three hundred thirty-two thousand, one hundred twenty-three".