1320123323 has 2 divisors, whose sum is σ = 1320123324. Its totient is φ = 1320123322.

The previous prime is 1320123283. The next prime is 1320123331. The reversal of 1320123323 is 3233210231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1320123323 - 2⁸ = 1320123067 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1320123295 and 1320123304.

It is not a weakly prime, because it can be changed into another prime (1320123373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660061661 + 660061662.

It is an arithmetic number, because the mean of its divisors is an integer number (660061662).

Almost surely, 2^1320123323 is an apocalyptic number.

1320123323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320123323 is an equidigital number, since it uses as much as digits as its factorization.

1320123323 is an evil number, because the sum of its binary digits is even.

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

The square root of 1320123323 is about 36333.5013864615. The cubic root of 1320123323 is about 1096.9954711802.

Adding to 1320123323 its reverse (3233210231), we get a palindrome (4553333554).

The spelling of 1320123323 in words is "one billion, three hundred twenty million, one hundred twenty-three thousand, three hundred twenty-three".