200310203123 has 2 divisors, whose sum is σ = 200310203124. Its totient is φ = 200310203122.

The previous prime is 200310203117. The next prime is 200310203161. The reversal of 200310203123 is 321302013002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200310203123 - 2¹⁸ = 200309940979 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (200310203113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100155101561 + 100155101562.

It is an arithmetic number, because the mean of its divisors is an integer number (100155101562).

Almost surely, 2^200310203123 is an apocalyptic number.

200310203123 is a deficient number, since it is larger than the sum of its proper divisors (1).

200310203123 is an equidigital number, since it uses as much as digits as its factorization.

200310203123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 200310203123 its reverse (321302013002), we get a palindrome (521612216125).

The spelling of 200310203123 in words is "two hundred billion, three hundred ten million, two hundred three thousand, one hundred twenty-three".