200320123 has 4 divisors (see below), whose sum is σ = 201033288. Its totient is φ = 199606960.

The previous prime is 200320093. The next prime is 200320147. The reversal of 200320123 is 321023002.

It is a happy number.

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 200320123 - 2²⁵ = 166765691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200320223) 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, 356161 + ... + 356722.

It is an arithmetic number, because the mean of its divisors is an integer number (50258322).

Almost surely, 2^200320123 is an apocalyptic number.

200320123 is a deficient number, since it is larger than the sum of its proper divisors (713165).

200320123 is an equidigital number, since it uses as much as digits as its factorization.

200320123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713164.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 200320123 is about 14153.4491555945. The cubic root of 200320123 is about 585.1153964286.

Adding to 200320123 its reverse (321023002), we get a palindrome (521343125).

The spelling of 200320123 in words is "two hundred million, three hundred twenty thousand, one hundred twenty-three".