320440103 has 2 divisors, whose sum is σ = 320440104. Its totient is φ = 320440102.

The previous prime is 320440097. The next prime is 320440121. The reversal of 320440103 is 301044023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320440103 - 2⁶ = 320440039 is a prime.

It is a super-2 number, since 2×320440103² = 205363719221301218, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320440403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160220051 + 160220052.

It is an arithmetic number, because the mean of its divisors is an integer number (160220052).

Almost surely, 2^320440103 is an apocalyptic number.

320440103 is a deficient number, since it is larger than the sum of its proper divisors (1).

320440103 is an equidigital number, since it uses as much as digits as its factorization.

320440103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 320440103 is about 17900.8408461726. The cubic root of 320440103 is about 684.3038040043.

Adding to 320440103 its reverse (301044023), we get a palindrome (621484126).

The spelling of 320440103 in words is "three hundred twenty million, four hundred forty thousand, one hundred three".