163123303 has 24 divisors (see below), whose sum is σ = 202245120. Its totient is φ = 130803120.

The previous prime is 163123277. The next prime is 163123321. The reversal of 163123303 is 303321361.

It is a de Polignac number, because none of the positive numbers 2^k-163123303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163123003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76218 + ... + 78328.

It is an arithmetic number, because the mean of its divisors is an integer number (8426880).

Almost surely, 2^163123303 is an apocalyptic number.

163123303 is a deficient number, since it is larger than the sum of its proper divisors (39121817).

163123303 is a wasteful number, since it uses less digits than its factorization.

163123303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227 (or 2220 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 163123303 is about 12771.9733400912. The cubic root of 163123303 is about 546.3932625930.

Adding to 163123303 its reverse (303321361), we get a palindrome (466444664).

The spelling of 163123303 in words is "one hundred sixty-three million, one hundred twenty-three thousand, three hundred three".