123500223 has 72 divisors (see below), whose sum is σ = 237523104. Its totient is φ = 60318720.

The previous prime is 123500213. The next prime is 123500233. The reversal of 123500223 is 322005321.

It is an interprime number because it is at equal distance from previous prime (123500213) and next prime (123500233).

It is not a de Polignac number, because 123500223 - 2⁴ = 123500207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123500196 and 123500205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123500213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 129115 + ... + 130067.

It is an arithmetic number, because the mean of its divisors is an integer number (3298932).

Almost surely, 2^123500223 is an apocalyptic number.

123500223 is a deficient number, since it is larger than the sum of its proper divisors (114022881).

123500223 is a wasteful number, since it uses less digits than its factorization.

123500223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 123500223 is about 11113.0654186862. The cubic root of 123500223 is about 497.9922459721.

Adding to 123500223 its reverse (322005321), we get a palindrome (445505544).

The spelling of 123500223 in words is "one hundred twenty-three million, five hundred thousand, two hundred twenty-three".