200023123 has 2 divisors, whose sum is σ = 200023124. Its totient is φ = 200023122.

The previous prime is 200023099. The next prime is 200023199. The reversal of 200023123 is 321320002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200023123 - 2⁵ = 200023091 is a prime.

It is not a weakly prime, because it can be changed into another prime (200023423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100011561 + 100011562.

It is an arithmetic number, because the mean of its divisors is an integer number (100011562).

Almost surely, 2^200023123 is an apocalyptic number.

200023123 is a deficient number, since it is larger than the sum of its proper divisors (1).

200023123 is an equidigital number, since it uses as much as digits as its factorization.

200023123 is an odious number, because the sum of its binary digits is odd.

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

The square root of 200023123 is about 14142.9531216079. The cubic root of 200023123 is about 584.8260841281.

Adding to 200023123 its reverse (321320002), we get a palindrome (521343125).

The spelling of 200023123 in words is "two hundred million, twenty-three thousand, one hundred twenty-three".