320535223 has 2 divisors, whose sum is σ = 320535224. Its totient is φ = 320535222.

The previous prime is 320535203. The next prime is 320535227. The reversal of 320535223 is 322535023.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320535223 is a prime.

It is equal to p_17302516 and since 320535223 and 17302516 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320535227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160267611 + 160267612.

It is an arithmetic number, because the mean of its divisors is an integer number (160267612).

Almost surely, 2^320535223 is an apocalyptic number.

320535223 is a deficient number, since it is larger than the sum of its proper divisors (1).

320535223 is an equidigital number, since it uses as much as digits as its factorization.

320535223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 320535223 is about 17903.4975074704. The cubic root of 320535223 is about 684.3715072846.

The spelling of 320535223 in words is "three hundred twenty million, five hundred thirty-five thousand, two hundred twenty-three".