1320923323 has 2 divisors, whose sum is σ = 1320923324. Its totient is φ = 1320923322.

The previous prime is 1320923267. The next prime is 1320923381. The reversal of 1320923323 is 3233290231.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320923323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1320923291 and 1320923300.

It is not a weakly prime, because it can be changed into another prime (1320926323) 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 as a sum of consecutive naturals, namely, 660461661 + 660461662.

It is an arithmetic number, because the mean of its divisors is an integer number (660461662).

Almost surely, 2^1320923323 is an apocalyptic number.

1320923323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320923323 is an equidigital number, since it uses as much as digits as its factorization.

1320923323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 1320923323 is about 36344.5088424648. The cubic root of 1320923323 is about 1097.2170209768.

The spelling of 1320923323 in words is "one billion, three hundred twenty million, nine hundred twenty-three thousand, three hundred twenty-three".