1320323123 has 8 divisors (see below), whose sum is σ = 1545744480. Its totient is φ = 1104102720.

The previous prime is 1320323023. The next prime is 1320323141. The reversal of 1320323123 is 3213230231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1320323123 - 2¹⁴ = 1320306739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1320323095 and 1320323104.

It is not an unprimeable number, because it can be changed into a prime (1320323023) 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, 2299928 + ... + 2300501.

It is an arithmetic number, because the mean of its divisors is an integer number (193218060).

Almost surely, 2^1320323123 is an apocalyptic number.

1320323123 is a deficient number, since it is larger than the sum of its proper divisors (225421357).

1320323123 is an equidigital number, since it uses as much as digits as its factorization.

1320323123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4600477.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1320323123 is about 36336.2508110014. The cubic root of 1320323123 is about 1097.0508116257.

Adding to 1320323123 its reverse (3213230231), we get a palindrome (4533553354).

The spelling of 1320323123 in words is "one billion, three hundred twenty million, three hundred twenty-three thousand, one hundred twenty-three".