123200273 has 4 divisors (see below), whose sum is σ = 140800320. Its totient is φ = 105600228.

The previous prime is 123200267. The next prime is 123200279. The reversal of 123200273 is 372002321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 372002321 = 47 ⋅7914943.

It is an interprime number because it is at equal distance from previous prime (123200267) and next prime (123200279).

It is a cyclic number.

It is not a de Polignac number, because 123200273 - 2⁸ = 123200017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123200279) 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, 8800013 + ... + 8800026.

It is an arithmetic number, because the mean of its divisors is an integer number (35200080).

Almost surely, 2^123200273 is an apocalyptic number.

It is an amenable number.

123200273 is a deficient number, since it is larger than the sum of its proper divisors (17600047).

123200273 is an equidigital number, since it uses as much as digits as its factorization.

123200273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17600046.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 123200273 is about 11099.5618381988. The cubic root of 123200273 is about 497.5887544824.

Adding to 123200273 its reverse (372002321), we get a palindrome (495202594).

The spelling of 123200273 in words is "one hundred twenty-three million, two hundred thousand, two hundred seventy-three".