123238163 has 4 divisors (see below), whose sum is σ = 128596368. Its totient is φ = 117879960.

The previous prime is 123238121. The next prime is 123238187. The reversal of 123238163 is 361832321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123238163 - 2¹⁶ = 123172627 is a prime.

It is a super-2 number, since 2×123238163² = 30375289639229138, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123238663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2679068 + ... + 2679113.

It is an arithmetic number, because the mean of its divisors is an integer number (32149092).

Almost surely, 2^123238163 is an apocalyptic number.

123238163 is a deficient number, since it is larger than the sum of its proper divisors (5358205).

123238163 is an equidigital number, since it uses as much as digits as its factorization.

123238163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5358204.

The product of its digits is 5184, while the sum is 29.

The square root of 123238163 is about 11101.2685311184. The cubic root of 123238163 is about 497.6397600659.

The spelling of 123238163 in words is "one hundred twenty-three million, two hundred thirty-eight thousand, one hundred sixty-three".