320049923 has 2 divisors, whose sum is σ = 320049924. Its totient is φ = 320049922.

The previous prime is 320049907. The next prime is 320049941. The reversal of 320049923 is 329940023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320049923 - 2⁴ = 320049907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320049923.

It is not a weakly prime, because it can be changed into another prime (320040923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160024961 + 160024962.

It is an arithmetic number, because the mean of its divisors is an integer number (160024962).

Almost surely, 2^320049923 is an apocalyptic number.

320049923 is a deficient number, since it is larger than the sum of its proper divisors (1).

320049923 is an equidigital number, since it uses as much as digits as its factorization.

320049923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 320049923 is about 17889.9391558496. The cubic root of 320049923 is about 684.0259464583.

Adding to 320049923 its reverse (329940023), we get a palindrome (649989946).

The spelling of 320049923 in words is "three hundred twenty million, forty-nine thousand, nine hundred twenty-three".